AU2004242777A1

AU2004242777A1 - Substituted pyrrole derivatives and their use as HMG-Co inhibitors

Info

Publication number: AU2004242777A1
Application number: AU2004242777A
Authority: AU
Inventors: Ram Chander Aryan; Anita Chugh; Yatendra Kumar; Vikram Krishna Ramanathan; Mohammad Salman; Jitendra Sattigeri
Original assignee: Ranbaxy Laboratories Ltd
Current assignee: Ranbaxy Laboratories Ltd
Priority date: 2003-05-30
Filing date: 2004-05-28
Publication date: 2004-12-09
Anticipated expiration: 2024-05-28
Also published as: EA200501881A1; UA82698C2; AP1963A; JP2011236218A; TNSN05306A1; NZ577031A; NZ543741A; WO2004106299A8; KR20110117731A; AP2501A; MXPA05012900A; US20100056602A1; CA2526730A1; US7923467B2; US20110190369A1; IL172257A0; AR044470A1; RS20050890A; AU2004242777B2; CA2753318A1

Description

WO 2004/106299 PCT/IB2004/001761 SUBSTITUTED PYRROLE DERIVATIVES Field of the Invention The present invention relates to substituted pyrrole derivatives, which can be used as 3 -hydroxy- 3 -methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors. 5 Compounds disclosed herein can function as cholesterol lowering agents and can be used for the treatment of cholesterol-related diseases and related symptoms. Processes for the preparation of disclosed compounds are provided, as well as pharmaceutical compositions containing the disclosed compounds, and methods of treating cholesterol related diseases and related symptoms. 10 Background of the Invention Cardiovascular disease and its associated maladies, dysfunctions and complications are a principal cause of disability and the chief cause of death. One specific factor significantly contributing to this pathophysiologic process is atherosclerosis, which has been generally recognized as the leading health care problem both with respect to 15 mortality and health care costs. Atherosclerosis is characterized by the deposition of fatty substances, primarily cholesterol, resulting in plaque formation on the inner surface of the arterial wall and degenerative change to the arteries. It is now well established that cardiovascular disorders including myocardial 20 infarction, coronary heart disease, hypertension and hypotension, cerebrovascular disorders including stroke, cerebral thrombosis and memory loss due to stroke; peripheral vascular disease and intestinal infarction are caused by blockage of arteries and arterioles by atherosclerotic plaque. Atherosclerotic plaque formation is multi-factorial in its production. Hypercholesterolemia, especially elevated levels of low-density lipoprotein 25 cholesterol (LDL), is an important risk factor for atherosclerosis and arteriosclerosis and associated diseases. The HMG-CoA reductase inhibitors (statins) have been used in reducing blood levels of LDL cholesterol. Cholesterol is produced via the mevalonic acid pathway. Reducing the formation of mevalonic acid, a precursor to cholesterol, leads to a 30 corresponding decrease in hepatic cholesterol biosynthesis with a reduction in the cellular pool of cholesterol. - 1- WO 2004/106299 PCT/IB2004/001761 U. S. Patent No. 4,681,893 assigned to Warner-Lambert, discloses certain trans-6 [2-(3-,or 4 -carbaoxamido-substituted pyrrole-1-yl)alkyl]- 4 -hydroxypyran-2-ones and the corresponding ring-opened hydroxy acids derived therefrom, including trans(±)-5-(4 fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-tetrahydro-4-hydroxy-6-oxo-2H 5 pyran- 2 -yl)ethyl]-1H-pyrrole-3-carboxamide, which are inhibitors of 3-hydroxy-3 methylglutaryl-coenzyme A reductase (HMG-CoA), an important coenzyme catalyzing the intracellular synthesis of cholesterol. U. S. Patent No. 5,273,995 assigned to Warner Lambert, relates to the optically pure (R, R) form of the ring-opened acid of trans-5-( 4 -fluorophenyl)-2-(1-methylethyl 10 N,4-diphenyl-1-[ 2 -tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl]-lH-pyrrole-3 carboxamide that is [R-(R*, R*)]- 2

-(

4 -fluorophenyl)-6,S-dihydroxy-5-(1-methylethyl)-3 phenyl- 4 -[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid, pharmaceutically acceptable salts thereof, specifically its calcium salt (Atorvastatin, Lipitore), which is currently being used for the treatment of hypercholesterolemia. 15 U. S. Patent No. 5,385,929 discloses certain phenyl hydroxy derivatives of the compounds disclosed in U. S. 5,273,995, and that such phenyl hydroxy derivatives are also active as the inhibitors of the biosynthesis of cholesterol. Summary of the Invention The present invention relates to substituted pyrrole derivatives, which can be used 20 as 3 -hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors, and processes for the synthesis of these compounds. These compounds show utility in inhibiting HMG-CoA reductase, among the key rate limiting steps in the biosynthetic pathway of cholesterol formation. Therefore, these compounds hold promise for the treatment of hypercholesterolemia and hyperlipidemia 25 Pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymorphs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides of these compounds having the same type of activity are also provided. Pharmaceutical composition containing the compounds, and which may also 30 contain pharmaceutically acceptable carriers or diluents, which can be used for the treatment of cholesterol-related disease or related symptoms thereof are also provided. -2- WO 2004/106299 PCT/IB2004/001761 Other aspects will be set forth in the accompanying description which follows and in the part will be apparent from the description or may be learnt by the practice of the invention. In accordance with another aspect, there is provided a method for treating a 5 mammal suffering from cholesterol related disease, diabetes and related disease, cerebrovascular disease or cardiovascular disease, comprising administering to a mammal a therapeutically effective amount of compounds disclosed herein. The compounds of the present invention can be used for treating arteriosclerosis, atherosclerosis, hypercholesterolemia, hyperlipidemia, hyperlipoproteinemia, 10 hypertriglyceridemia, hypertension, stroke, ischemia, endothelium dysfunction, peripheral vascular disease, peripheral arterial disease, coronary heart disease, myocardial infarction, cerebral infarction, myocardial microvascular disease, dementia, Alzheimer's disease, osteoporosis and/or osteopenia, angina or resterosis. In accordance with one aspect, there is provided a compound having the structure 15 of Formula I, R4 R2

R

3 N R. 20 Formula I its pharmaceutically acceptable salts, pharmaceutically acceptable solvates, prodrugs, metabolites, polymorphs, tautomers, racemates, pure enantiomers, diastereoisomers or N oxides wherein OH OH OH 0 25 Y OH r 0

R

1 can be Ci-C 6 , C 3

-C

6 , or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, C 1

-C

6 alkyl, cyano, or Ci-C 3 perfluoroalkyl); -3- WO 2004/106299 PCT/IB2004/001761

R

2 can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from C 1

-C

6 alkyl, C 3

-C

6 cycloalkyl, acetyl, or sulfonamide); 5 R 3 can be optionally substituted C1-C 6 alkyl or C 3 -C6 cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C 1

-C

3 alkoxy and protected hydroxyl);

R

3 can also be -NR 8

R

9 , wherein R 8 and R 9 are optionally substituted CI-C 6 alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, C1-C 3 alkoxy and protected hydroxyl); 10 R 4 canbe

R

5 N-R6 wherein R 5 and R 6 are independently hydrogen,

C

1

-C

6 alkyl or C 3

-C

6 cycloalkyl, 15 optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted CI-C 6 alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from S0 2

R

7 ,

COR

7 , or CONHR 7 , wherein R 7 is C1-C 6 alkyl or aryl), or acetyl, trifluoromethyl, or C1-C6 20 alkoxycarbonyl, or R 5 and R 6 together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or R 4 can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from 25 oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl,

CI-C

3 alkoxy, cyano, C 1

-C

3 perfluoroalkyl,

C

1

-C

6 alkyl or C 3

-C

6 cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl,

C

1

-C

3 alkoxy, cyano, or C 1

-C

3 perfluoroalkyl, 30 and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I, -4- WO 2004/106299 PCT/IB2004/001761 with the proviso that R 2 is phenyl only when (1) R 5 or R 6 is C 3

-C

6 cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R 5 and R 6 together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or 5 (3) when R 5 or R 6 is aralkyl optionally substituted with halogens, cyano, C 1

-C

6 alkyl, C 1 C 6 halogenated alkyl or (4) when R 4 is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl,

C

1

-C

3 alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, Ci-C 6 alkyl, C 3

-C

6 cycloalkyl, aryl, or 10 optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens, hydroxy, protected hydroxyl, CI-C 3 alkoxy, cyano, or C 1

-C

3 perfluoroalkyl)). In accordance with another aspect, there are provided compounds having the structure of Formula Ib, 15 N-Y R4R Formula lb their pharnaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, 20 racemates, polymorphs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N oxides wherein OH OH OH 0 y OHor 0

R

1 can be C 1

-C

6 alkyl, C 3

-C

6 cycloalkyl, or optionally substituted phenyl (wherein the 25 substituent(s) is/are selected from halogens, C 1

-C

6 alkyl, cyano and C 1

-C

3 perfluoroalkyl);

R

2 can be optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino); -5- WO 2004/106299 PCT/IB2004/001761

R

3 can be optionally substituted C 1

-C

6 alkyl or C 3

-C

6 cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C 1

-C

3 alkoxy, and protected hydroxyl); R 3 can also be -NR 6

R

7 wherein R 6 and R 7 are optionally substituted

C

1

-C

6 alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl,

C

1

-C

3 alkoxy, 5 and protected hydroxyl);

R

4 can be acetyl, C 1

-C

2 alkoxycarbonyl, optionally substituted C 1

-C

6 alkyl (wherein the substituent is hydroxy or protected hydroxyl),

NHR

8 [wherein

R

8 is selected from alkyl, aralkyl, S0 2

R

9 , COR 9 or CONHR 9 , CSNHR 9 (wherein R 9 is C1-C 6 alkyl, aryl or aralkyl)]; R4 can also be -CORI 0 (wherein Rio is selected from hydroxyl and -NRIIR 1 2 (wherein Ru 1 10 and R 12 are independently selected from hydrogen, alkyl, aryl, C 3

-C

7 cycloalkyl, heterocyclyl, aralkyl and RI, and R 1 2 together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); R5 can be hydrogen, C 1

-C

6 alkyl or C 3

-C

6 cycloalkyl, optionally substituted aryl or aralkyl 15 [wherein the substituents are selected from halogens, cyano, optionally substituted

C

1

-C

6 alkyl (wherein the substituents are independently 'selected from hydroxyl, protected hydroxyl, and halogen(s)], optionally substituted amino, acetyl, trifluoromethyl and C 1

-C

6 alkoxycarbonyl. In one particular embodiment, there are provided compounds of Formula Ib, 20 -R Formula lb 25 their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymorphs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N oxides wherein OH OH OH 0 Y ~ ~or ... OH 0 30 0 -6- WO 2004/106299 PCT/IB2004/001761

R

1 , R 2 , R 3 and R 5 are as defined earlier; R4 can be NHR 8 [wherein Rs is selected from aralkyl, CONHR 9 (wherein R 9 is aralkyl);

CSNHR

9 (wherein R 9 is C 1

-C

6 alkyl, aryl or aralkyl)]; -CORio (wherein Rio is selected from hydroxyl and -NR 1

R

12 (wherein R, 1 and R 12 are independently selected from 5 hydrogen, alkyl, aryl, C 3

-C

7 cycloalkyl, aralkyl and R 1 and R 12 together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); In yet another particular embodiment, there are provided compounds of Formula Ib, 10 N--Y O-W. R 1 Formula Ib 15 their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymorphs, pure enantiomers, diastercoisomers, metabolites, prodrugs or N oxides wherein OH OH OH 0 Y OH or 0 200 R1, R 2 , R3 and R5 can be 4-fluorophenyl, phenyl, isopropyl and hydrogen, respectively; R4 can be C 1

-C

2 alkoxycarbonyl, optionally substituted

C

1

-C

6 alkyl (wherein the substituent is hydroxy or protected hydroxyl),

NHR

8 [wherein R8 is selected from S0 2

R

9 ,

COR

9 or CONHR 9 (wherein R 9 is methyl or phenyl)] -7- WO 2004/106299 PCT/IB2004/001761 In accordance with further aspect, there are provided intermediates having the structure of Formula XIX, R30 5 H O Formula XIX wherein R2 can be optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; 10 R 3 can be optionally substituted C-C 6 alkyl or C 3

-C

6 cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C-C 3 alkoxy, and protected hydroxyl); R 3 can also be -NR 6

R

7 wherein R 6 and R 7 are optionally substituted C-C 6 alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl,

CI-C

3 alkoxy, and protected hydroxyl). 15 In accordance with third aspect, there are provided intermediates having the structure of Formula XX, R3 0 20 R1 Formula XX wherein R1 can be C-C 6 alkyl, C 3

-C

6 cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, C-C 6 alkyl, cyano and C-C 3 perfluoroalkyl); 25 R 2 can be optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; R3 can be optionally substituted

C-C

6 alkyl or C 3

-C

6 cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl,

C

1

-C

3 alkoxy, and protected hydroxyl); R3 can also be -NR 6

R

7 wherein R 6 and R 7 are optionally substituted

C-C

6 alkyl -8- WO 2004/106299 PCT/IB2004/001761 (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, Ci-C 3 alkoxy, and protected hydroxyl). In accordance with fourth aspect, there are provided intermediates having the structure of Formula XXI, 5 O O Formula XXI 10 wherein R1 can be C1-C 6 alkyl, C 3

-C

6 cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, C 1

-C

6 alkyl, cyano and CI-C 3 perfluoroalkyl);

R

2 can be optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; 15 R 3 can be optionally substituted

C

1

-C

6 alkyl or C 3

-C

CI-C

3 alkoxy, and protected hydroxyl);

R

3 can also be -NR 6

R

7 wherein R 6 and R 7 are optionally substituted C1-C 6 alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, Ci-C 3 alkoxy, and protected hydroxyl). 20 In accordance with fifth aspect, there are provided intermediates having the structure of Formula XXII, 3 11. -1, P'N 25 R1 Formula XXII wherein R1 can be C 1

-C

6 alkyl, C 3

-C

6 cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens,

C

1

-C

6 alkyl, cyano and C 1

-C

3 perfluoroalkyl); -9- WO 2004/106299 PCT/IB2004/001761 R2 can be optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino;

R

3 can be optionally substituted C 1

-C

6 alkyl or C 3

-C

3 alkoxy, and protected 5 hydroxyl); R 3 can also be -NR 6

R

7 wherein R 6 and R 7 are optionally substituted

C

1

-C

C

1

-C

3 alkoxy, and protected hydroxyl). As used herein the term "alkyl", unless otherwise defined, refers to straight or branched chain hydrocarbon of from 1 to 10 carbon atom(s). Examples of alkyl include, 10 but are not limited to, methyl, ethyl, n-propyl, isopropyl, butyl, octyl, and the like. Alkyl may optionally be substituted with halogen, hydroxy, protected hydroxyl,

C

1

-C

3 alkoxy, optionally substituted amino and C 1

-C

6 alkoxycarbonyl. As used herein the tenn "optionally substituted amino", unless otherwise defined, refers to NR 14 Ri 5 wherein R 14 and Ri 5 are independently selected from hydrogen, alkyl, 15 aryl, aralkyl, C 3

-C

7 cycloalkyl, S0 2 Ri 6 , COR 16 , CONHR 16 and CSNHR 16 (wherein R 16 is

C

1

-C

6 alkyl, aryl or aralkyl). As used herein the term "protected hydroxyl" refers to a hydroxy moiety protected by a group R 17 wherein

R

17 is selected from alkyl, cycloalkyl, aralkyl, aryl, -(CH 2 )nOR 18 (wherein R 18 is selected from alkyl, cycloalkyl, aralkyl, aryl and n represents an integer 20 from 1 to 6), COR 1 9 , CSR 19 , CONHR 1 9 and CSNHR 19 (wherein

R

19 is selected from alkyl, aryl, aralkyl and heterocyclyl). Examples of protected hydroxyl include, but are not limited to, -OCH 3 , -OC 2

H

5 , -O-n-propyl, -0-i-propyl, -O-cyclopropyl, -0-CH 2 0CH 3 , -0 cyclopentyl, -0-cyclohexyl, -O-benzyl, -O-chlorobenzyl, -O-methoxybenzyl, -0-phenyl, 0-chlorophenyl, -0-COCH 3 , -O-COC 2

H

5 , -O-CObenzyl, -0-COphenyl, -O-COpyridinyl, 25 O-CONHphenyl, -O-CONHpyridinyl, -O-CONH-octyl, -O-CSNHphenyl, and the like. As used herein the term "aralkyl" refers to (CH2)nlaryl wherein n is an integer from 1 to 6. As used herein the term "aryl", unless otherwise defined, refers to an aromatic radical having 6 to 14 carbon atoms. Examples of aryl include, but are not limited to, 30 phenyl, napthyl, anthryl and biphenyl, and the like. -10- WO 2004/106299 PCT/IB2004/001761 As used herein the term "heterocyclyl" refers to non-aromatic, aromatic or aromatic fused with non-aromatic ring system having one or more heteroatom (s) in either the aromatic or the non-aromatic part wherein the said hetero atom (s) is/ are selected from the group comprising of nitrogen, sulphur and oxygen and the ring system includes mono, 5 bi or tricyclic. Examples of heterocycles include, but not limited to, benzoxazinyl, benzthiazinyl, benzimidazolyl, benzofuranyl, carbazolyl, Indolyl, indolinyl, oxazolyl, phenoxazinyl, pyridyl and phenothiazinyl, and the like. The said aryl or heterocyclyl may optionally be substituted with one or more substituent(s) independently selected from halogen, hydroxy, nitro, cyano, alkyl, aryl, 10 alkoxy, thioalkyl, cycloalkoxy, optionally substituted amino. In accordance with yet another aspect, there are provided processes for the preparation of the compounds described herein. In accordance with another aspect, there is provided a method for treating a mammal suffering from cholesterol related disease, diabetes and related disease, 15 cerebrovascular disease or cardiovascular disease, comprising administering to a mammal a therapeutically effective amount of compounds disclosed herein. The compounds of the present invention can be used for treating arteriosclerosis, atherosclerosis, hypercholesterolemia, hyperlipidemia, hyperlipoproteinemia, hypertriglyceridemia, hypertension, stroke, ischemia, endothelium dysfunction, peripheral 20 vascular disease, peripheral arterial disease, coronary heart disease, myocardial infarction, cerebral infarction, myocardial microvascular disease, dementia, Alzheimer's disease, osteoporosis and/or osteopenia, angina or resterosis. Detailed Description of the Invention The compounds described herein may be prepared by techniques well 25 known in the art and familiar to the average synthetic organic chemist. In addition, the compounds of the present invention may be prepared by the following reaction sequences as depicted in Schemes I, Ia, Ib, II, Ila, III, Ila, and IV. Further compounds which can be useful for treatment of these diseases, and methods for making such compounds, are disclosed in copending United States Patent Application Serial No. 10/448,770 filed 30 30 May, 2003, entitled "Substituted Pyrrole Derivatives," and PCT Application No. PCT/IB2004/___ filed entitled "Substituted Pyrrole Derivatives," which applications are incorporated herein in their entirety. - 11 - WO 2004/106299 PCT/IB2004/001761 Scheme I 0 0 0 0

R

3 O + R 5

R

6 NH b R3 N Formula II Formula III Formula IVI

R

2 CHO Formula V 0 0 0 0 Rs

R

1 CHO H Formula VII R5 0 R O R2 X

R

1 H R 2 Formula VIII Formula VI H2N ' Formula IX 0 O O 0tBu N O 0 R2 R1 Formula X 04 R, OH OH OH R N OI R2 R, Formula XI 0 OH OH OH Formula I wherein R4 = R 5 00 Rs,,R, OH OHf 0- /2Ca" 2 RV N R N O R2N Formula XII [Hemi calcium salt] - 12 - WO 2004/106299 PCT/IB2004/001761 SCHEME I The compound of Formula XII can be prepared according to Scheme I. Accordingly, a compound of Formula II is reacted with a compound of Formula III, wherein R 3 , R 5 and R 6 are as defined earlier, to give a compound of Formula IV which on 5 reaction with a compound of Formula V (wherein R 2 is as defined earlier) gives a compound of Formula VI, which on treatment with a compound of Fonnula VII (wherein

R

1 is as defined earlier) yields a compound of Formula VIII, which on further reaction with a compound of Formula IX gives a compound of Formula X, which on hydrolysis gives a compound of Formula XI, which can then be further converted to hemicalcium 10 salt. The reaction of a compound of Formula II with a compound of Formula III to give a compound of Formula IV can be carried out in a nonpolar solvent, such as xylene or toluene. The reaction of a compound of Formula II with a compound of Formula III can be carried out in the presence of an organic base, such as triethylamine, pyridine or 1,2 15 ethylenediamine. The reaction of a compound of Formula IV with an aldehyde of Formula V to give a compound of Formula VI can be carried out in a nonpolar solvent such as hexane, heptane, dichloromethane or toluene or mixture(s) thereof. The reaction of a compound of Formula IV with an aldehyde of Formula V can be carried out in the presence of an organic base such as piperidine, pyridine or P-alanine and an organic acid 20 such as glacial acetic acid or benzoic acid. The reaction of a compound of Formula VI with an aldehyde of Formula VII to give a compound of Formula VIII can be carried out in the presence of a suitable catalyst, such as sodium cyanide, 3-ethyl-5- (2-hydroxyethyl) 4-methyl thiazolium bromide or 3-benzyl-5- (2-hydroxyethyl)-4-methyl thiazolium chloride, in a solvent free condition or in an alcoholic solvent, such as methanol, ethanol, 25 propanol or isopropanol. The reaction of a compound of Formula VI with an aldehyde of Formula VII can be carried out in the presence of an organic base, such as triethylamine or pyridine. The reaction of a compound of Formula VIII with a compound of Formula IX to give a compound of Formula X can be carried out in a nonpolar solvent, such as xylene, 30 toluene hexane, heptane, tetrahydrofuran, or a mixture thereof in a suitable ratio. The reaction of a compound of Formula VIII with a compound of Formula IX can be carried out in the presence of an organic acid, such as pivalic acid or p-toluene sulfonic acid. - 13 - WO 2004/106299 PCT/IB2004/001761 The conversion of a compound of Formula X to a compound of Formula XI can be carried out in a two-step manner, involving an initial acid-catalysed cleavage of ketal, followed by base-catalysed hydrolysis of the tert-butyl ester. The acid can be a mineral acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other 5 cleavage method known in the prior art. The base can be an organic base, such as lithium hydroxide, sodium hydroxide or potassium hydroxide. The compound of Formula XI can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. The hemi calcium salts of compound of Fonnula XI can also be prepared from the 10 corresponding lactones form of Formula XI by following procedures well-known in the art. -14- WO 2004/106299 PCT/IB2004/001761 Scheme Ia 0 R3 0 0 OtBu NO 0 R2 0 Formula XII CH3Formula X, wherein R 5 H, R .- CH3 o H

R

3 0 O OtBu NN 00 Form-ula XIV 00 H O 0 OtBu N 0 HO R2 R Formula XV O H3 OH OH OH H No R2 HO1 R, Formula XVI N o Oil f Formula I, wherein R 4 N O Formula XVII [Hemi calcium salt] - 15 - WO 2004/106299 PCT/IB2004/001761 SCHEME Ia The compound of Formula XVII can be prepared according to Scheme Ia. Accordingly, a compound of Formula XIII (that is, Formula X wherein R 5 =H and 0

R

6 = ' prepared according to Scheme I) is hydrolyzed to give a compound of 5 Formula XIV which, on reduction, gives a compound of Formula XV, which on hydrolysis gives a compound of Formula XVI, which can then be further converted to hemi calcium salt. The hydrolysis of a compound of Formula XIII to give a compound of Formula XIV can be carried out in a polar solvent, such as tetrahydrofuran, dioxane, methanol, 10 ethanol or mixture(s) thereof. The hydrolysis of a compound of Formula XIII can be carried out in the presence of an inorganic base such as lithium hydroxide, sodium hydroxide or potassium hydroxide. The reduction of a compound of Formula XIV to give a compound of Formula XV can be carried out in the presence- of iodine and a reducing agent, such as sodium 15 borohydride or borane dimethylsulphide in an organic solvent, such as tetrahydrofuran, dioxane or diethylether. The conversion of a compound of Formula XV to a compound of Formula XVI is carried out in a two-step manner, involving an initial acid-catalyzed cleavage of ketal, followed by base-catalyzed hydrolysis of the tert-butyl ester. The acid can be a mineral 20 acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other cleavage method known in the prior art. The base can be an inorganic base, such as lithium hydroxide, sodium hydroxide or potassium hydroxide. The compound of Formula XVI can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. 25 The hemi calcium salts of compound of Formula XVI can also be prepared from the corresponding lactone form of Formula XVI by following procedures well-known in the art. -16- WO 2004/106299 PCT/IB2004/001761 Scheme lb 0 0 NHR 5 0 0 +

R

3

--

N R5 R Formula IVb Formula II Formula IIIb Fo I b R2CHO Formula V O O0, R4 R3 N R 1 CHO 0 0 0 H R 2 Formula VII R 3 YN Rs RH R Formula VIIIb Formula VIb o 0 ota R4

H

2 N F Formula IX 0 R3 O O OtBu N

-

N R2R, Formula Xb O OH OH OH N 'N R, Formula XIb OH OH OH 4 Formula I wherein y O0 R3 OH OH O~ 1/2Ca- 2 NN O R2R, R4 Formula XIIb [Hemi calcium salt] - 17 - WO 2004/106299 PCT/IB2004/001761 SCHEME lb The compound of Formula XIb can be prepared according to Scheme Ib. Accordingly, a compound of Formula II is reacted with a compound of Formula IHb, wherein R 3 , R 4 and R 5 are as defined earlier, to give a compound of Formula IVb which on 5 reaction with a compound of Formula V (wherein R 2 is as defined earlier) gives a compound of Fonnula VIb, which on treatment with a compound of Formula VII (wherein R 1 is as defined earlier) yields a compound of Formula VIIIb, which on further reaction with a compound of Formula IX gives a compound of Formula Xb, which on hydrolysis gives a compound of Formula;XIb, which can then be further converted to 10 hemicalcium salt. The reaction of a compound of Formula II with a compound of Formula IIb to give a compound of Formula IVb can be carried out in an aromatic solvent, such as xylene or toluene. The reaction of a compound of Formula II with a compound of, Formula IIb can be carried out in the presence of an organic base, such as triethylamine, pyridine or 15 1,2-ethylenediainine. The reaction of a compound of Formula IVb with an aldehyde of Formula V to give a compound of Formula VIb can be carried out in a hydrocarbon solvent, such as hexane, heptane, or halogenated solvent, such as dichloromethane, or aromatic solvent, such as toluene, or mixture thereof. The reaction of a compound of Formula IVb with an 20 aldehyde of Formula V can be carried out in the presence of an organic base such as piperidine, pyridine or -alanine and an organic acid such as glacial acetic acid or benzoic acid. The reaction of a compound of Formula VIb with an aldehyde of Formula VII to give a compound of Formula VIIIb can be carried out in the presence of a suitable catalyst, 25 such as sodium cyanide, 3-ethyl-5- ( 2 -hydroxyethyl)-4-methyl thiazolium bromide or 3 benzyl-5- ( 2 -hydroxyethyl)-4-methyl thiazolium chloride, in a solvent free condition or in an alcoholic solvent, such as methanol, ethanol, propanoi or isopropanol or ethers, such as dioxan or tetrahydrofuran. The reaction of a compound of Formula VIb with an aldehyde of Formula VII can be carried out in the presence of an organic base, such as triethylamine 30 or pyridine. - 18 - WO 2004/106299 PCT/IB2004/001761 The reaction of a compound of Formula VIIb with a compound of Formula IX to give a compound of Formula Xb can be carried out in a solvent, such as xylene, toluene, hexane, heptane, tetrahydrofuran, or a mixture thereof in a suitable ratio. The reaction of a compound of Formula VIIb with a compound of Formula IX can be carried out in the 5 presence of an organic acid, such as pivalic acid or p-toluene sulfonic acid. The conversion of a compound of Formula Xb to a compound of Formula Xlb can be carried out in a two-step manner, involving an initial acid-catalysed cleavage of ketal, followed by base-catalysed hydrolysis of the tert-butyl ester. The acid can be a mineral acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other 10 cleavage method known in the prior art. The base can be an inorganic base, such as lithium hydroxide, sodium hydroxide or potassium hydroxide. The compound of Formula XIb can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. The hemi calcium salts of compound of Formula XIb can also be prepared from the 15 corresponding lactones form of Formula XIb by following procedures well-known in the art. -19- WO 2004/106299 PCT/IB2004/001761 Scheme II 0 0 0 0

R

2 CHIO Formula V Formula XVIII H R Formula XIX RICHO Formula VII 0 0 Otu 0 0 H2Nl-u o 0 Bu Formula IX R 3 0 0 H

R

2 Formula XXI Formula XX O0O 0 OtBu HO O

R

2 R, Formula XXII Chloronating agent CopVggent1

R

5 6(Formla Io RRuNH Om la III) Path a Path b R5,, 0 S < O u

N

0 R, Formula X Formula XI 0 Formula I wherein R4 = tN y R51-1N OH OH" 1/2 Ca2+1 R2 R Formula XII [Hemi calcium salt] - 20 - WO 2004/106299 PCT/IB2004/001761 SCHEME II The compound of Formula XII can also be prepared according to Scheme II. Accordingly, a compound of Formula XVIII is reacted with a compound of Formula V to give a compound of Formula XIX (wherein R 2 and R 3 are as defined earlier in Scheme I) 5 which on reaction with a compound of Formula VII (wherein Ri is as defined earlier) gives a compound of Formula XX, which on treatment with a compound of Formula IX yields a compound of Formula XXI, which on debenzylation gives a compound of Formula XXII, which on (a) conversion to corresponding acid chloride followed by reaction with an amine 10 of Formula III (Path a) or (b) reaction with an amine of Formula III in the presence of a coupling agent (Path b), gives a compound of Formula X, which on hydrolysis gives a compound of Forula XI, which can be further converted to hemicalcium salt of Formula XI by following the procedure well known in the art. 15 The reaction of a compound of Formula XVIII with an aldehyde of Formula V to give a compound of Formula XIX can be carried out in a nonpolar solvent, such as xylene, toluene, heptane, hexane or dichloromethane or mixture thereof. The reaction of a compound of Formula XVIII with a compound of Formula V can be carried out in the presence of an organic base, such as triethylamine, pyridine, piperidine or p-alanine and 20 an organic acid such as glacial acetic acid or benzoic acid. I The reaction of a compound of Fornula XIX with an aldehyde of Formula VII to give a compound of Formula XX can be carried out in a polar solvent, such as an alcoholic solvent, for example, methanol, ethanol, propanol or isopropanol. The reaction of a compound of Formula XIX with an aldehyde of Formula VII can be carried out in the 25 presence of an organic base, such as triethylamine or pyridine. The reaction of a compound of Formula XIX with an aldehyde of Formula VII to give a compound of Formula XX can be carried out in the presence of a catalyst, such as sodium cyanide, 3 ethyl-5- ( 2 -hydroxyethyl)-4-methyl thiazolium bromide or 3-benzyl-5- (2-hydroxyethyl) 4-methyl thiazolium chloride. 30 The reaction of a compound of Formula XX with an amine of Formula IX to give a compound of Formula XXI can be carried out in the presence of an acid, such as pivalic -21- WO 2004/106299 PCT/IB2004/001761 acid and p-toluene sulfonic acid in a nonpolar solvent such as hexane, heptane, toluene or tetrahydrofuran. The debenzylation of a compound of Formula XXI to give a compound of Formula XXII can be carried out in the presence of a catalyst, such as palladium on carbon and 5 hydrogen, in a polar solvent, such as methanol, ethanol, propanol or dioxane. The conversion of compound of Formula XXII to its corresponding acid chloride (Path a) can be carried out with any suitable chlorinating agent, such as oxalyl chloride, in a nonpolar solvent, such as benzene, dichloromethane, tetrahydrofuran, toluene or xylene, followed by reaction with an amine of Formula III to give a compound of Formula X, in a 10 nonpolar solvent, such as benzene, and in the presence of an organic base, such as triethylamine or pyridine. Reaction of compound of Formula XXII with an amine of Formula III to give a compound of Formula X can be carried out in the presence of a coupling agent (Path b), such as O-benzotriazol-1-yl-N,N,N',N'-tetrainethyl uronium hexafluorophosphate 15 (HBTU), bis( 2 -oxo- 3 -oxazolidinyl)phosphine (BOP), 1, 3 -dicyclohexycarbodiimide (DCC), 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (TBTU), benzotriazole-1-yl-oxy-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBOP) or carbonyldiimidazole (CDI) in a polar solvent, such as dimethylformamide, and an organic base, such as diisopropylethyl 20 amine. The conversion of a compound of Formula X to a compound of Formula XI can be carried out in a two-step manner, involving an initial acid-catalysed cleavage of ketal, followed by base-catalysed hydrolysis of the tert-butyl ester. The acid can be a mineral acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other 25 cleavage method known in the prior art. The base can be an inorganic base, for example, lithium hydroxide, sodium hydroxide or potassium hydroxide. The compound of Formula XI can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. The hemi calcium salts of compound of Formula XI can also be prepared from the 30 corresponding lactone form of Formula XI by following procedures well-known in the art. -22- WO 2004/106299 PCT/IB2004/001761 Scheme Ila O Formula X Ia (Jj I Formnula X, wherein R 5 =H, R 4 Ao- CE 3 0

HO

0 Formula XJVa 00 R3 OH OH CH o Formula XVa OH OH OH Formula I, wherein R 4 =-COOH, R 5 =H, Y = o Na Na

O

O Formula XVIa [Disodium Salt] - 23 - WO 2004/106299 PCT/IB2004/001761 SCHEME Ia The compound of Formula XVIa can be prepared according to Scheme Ila. Accordingly, a compound of Formula XIIIa (that is, Formula Xa wherein R 5 =H and R4=

-COOCH

3 , prepared according to Scheme I) is hydrolyzed to give a compound of Formula 5 XIVa, which on further hydrolysis gives a compound of Formula XVa, which can then be converted to disodium salt. The conversion of compounds of Formula XIIIa to compounds of Formula XVa can be carried out in a two-step manner, involving an initial acid-catalyzed cleavage of ketal, followed by base-catalyzed hydrolysis of the methyl and tert-butyl ester. The acid 10 can be a mineral acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other cleavage method known in the prior art. The base can be an inorganic base, such as lithium hydroxide, sodium hydroxide or potassium hydroxide. The compound of Formula XVa can be converted into its corresponding disodium salt by following procedures well-known to a person ordinary skilled in the art. - 24 - WO 2004/106299 PCT/IB2004/001761 Scheme III OH NH2 Formula XXIII HO

----

Lt~ R2 R1 Formula XXII R3 X NN R0 Formula XXXV 00 t~ N O R, Formula XXV N N

N

0 Formula XXV NN _0 OH OH H 1 [FormulalI wherein R 4 Y= Formula XXVII [Hemi calcium salt) -25 - WO 2004/106299 PCT/IB2004/001761 SCHEME III The compound of Formula XXVII can be prepared according to Scheme III. Amidoxime (prepared as per procedure described in J Med. Chen., 45:944 (2002) and J. Med. Chem., 29:2174 (1986)) of Formula XXIII on coupling with a compound of Formula 5 XXII (prepared following the steps of Scheme II) gives a compound of Formula XXIV, which on cyclisation in diglyme gives a compound of Formula XXV, which on hydrolysis gives a compound of Formula XXVI, which can be further converted to its hemi calcium salt. The coupling of compound of Formula XXIII with a compound of Formula XXII 10 can be carried out in the presence of N, N'-carbonyldiimidazole in an organic solvent, such as tetrahydrofuran, dioxane or ether. The cyclisation of compound of Formula XXIV can be carried out in diglyme to give a compound of Formula XXV. The conversion of a compound of Formula XXV to a compound of Formula XXVI 15 can be carried out in a two-step manner, involving an initial acid-catalyzed cleavage of ketal, followed by base-catalyzed hydrolysis of the tert-butyl ester. The acid can be a mineral acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other cleavage method known in the prior art. The base can be an inorganic base, for example, lithium hydroxide, sodium hydroxide or potassium hydroxide. 20 The compound of Formula XXVI can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. The hemi calcium salts of compound of Formula XXVI can also be prepared from the corresponding lactone form of Formula XXVI by following procedures well-known in the art. -26- WO 2004/106299 PCT/IB2004/001761 Scheme IIIa 0 0 0 0

R

2 CHO Formula V Formula XVIII H R Formula XIX RCHO Formula VII O '> 0 0 ta 0 10 R O OtBu 0 N O Formula IX 0 0 R2 Formula XXI Formula XX O R3 0 O OtBu HO NO R2 R, Formula XXII Chloronating agent Coupling agent (Formula Ia (Formula IIIa) Path a /Path b Ot~ R3 O O Otlu NO R Formula Xa R, Formula XIa OH Oil OH Formula b wherein y 0

R

3 OH OH O~ N 1/2 Ca2+ N 0 R R4 Formula XIIa [Hemi calcium salt] -27- WO 2004/106299 PCT/IB2004/001761 SCHEME IIIa The compound of Formula XIIa can also be prepared according to Scheme IIa. Accordingly, a compound of Formula XVIII is reacted with a compound of Formula V to give a compound of Formula XIX (wherein R 2 and R 3 are as defined earlier) which on 5 reaction with a compound of Formula VII (wherein R 1 is as defined earlier) gives a compound of Formula XX, which on treatment with a compound of Formula IX yields a compound of Formula XXI, which on debenzylation gives a compound of Formula XXII, which on (a) conversion to corresponding acid chloride followed by reaction with an amine 10 of Formula II1a (Path a) or (b) reaction with an amine of Formula II1a in the presence of a coupling agent (Path b) gives a compound of Formula Xa, which on hydrolysis gives a compound of Formula XIa, which can be further converted to hemi calcium salt of Formula XIa by following the procedure well known in the art. 15 The reaction of a compound of Formula XVIII with an aldehyde of Fonnula V to give a compound of Formula XIX can be carried out in a hydrocarbon solvent, such as hexane or heptane, or halogenated solvent, such as dichloromethane, or aromatic solvent, such as toluene or xylene, or mixture thereof. The reaction of a compound of Formula XVIII with a compound of Formula V can be carried out in the presence of an organic 20 base, such as triethylamine, pyridine, piperidine or P-alanine and an organic acid such as glacial acetic acid or benzoic acid. The reaction of a compound of Fonnula XIX with an aldehyde of Formula VII to give a compound of Formula XX can be carried out in a polar solvent, such as an alcoholic solvent, for example, methanol, ethanol, propanol or isopropanol. The reaction of a 25 compound of Formula XIX with an aldehyde of Formula VII can be carried out in the presence of an organic base, such as triethylamine or pyridine. The reaction of a compound of Formula XIX with an aldehyde of Formula VII to give a compound of Formula XX can be carried out in the presence of a catalyst, such as sodium cyanide, 3 ethyl-5- (2-hydroxyethyl)-4-methyl thiazolium bromide or 3-benzyl-5- (2-hydroxyethyl) 30 4-methyl thiazolium chloride. The reaction of a compound of Formula XX with an amine of Formula IX to give a compound of Formula XXI can be carried out in the presence of an acid, such as pivalic -28- WO 2004/106299 PCT/IB2004/001761 acid and p-toluene sulfonic acid in a hydrocarbon solvent, such as hexane or heptane, or aromatic solvent, such as toluene, or ether, such as tetrahydrofuran or mixture thereof. The debenzylation of a compound of Formula XXI to give a compound of Formula XXII can be carried out in the presence of a catalyst, such as palladium on carbon and 5 hydrogen, in a polar solvent, such as alcoholic solvent, for example, methanol, ethanol or propanol, or ether solvent, for example, dioxane. The conversion of compound of Formula XXII to its corresponding acid chloride (Path a) can be carried out with any suitable chlorinating agent, such as oxalyl chloride or thionyl chloride, in an aromatic solvent, such as benzene, toluene or xylene, or 10 halogenated solvent, such as dichloromethane, or ether, such as tetrahydrofuran, followed by reaction with an amine of Formula II1a to give a compound of Formula Xa, in an aromatic solvent, such as benzene, and in the presence of an organic base, such as triethylamine or pyridine. Reaction of compound of Formula XXII with an amine of Formula IIa to give a 15 compound of Formula Xa (path b) can be carried out in the presence of a coupling agent, such as O-benzotriazol- 1 -yl-N,N,N',N'-tetramethyl uronium hexafluorophosphate (HBTU), bis(2-oxo-3-oxazolidinyl)phosphine (BOP), 1, 3 -dicyclohexycarbodiimide (DCC), 2-(lH-benzotriazole-1-yl)-1,1, 3

,

3 -tetramethyluronium tetrafluoroborate (TBTU), benzotriazole-1-yl-oxy-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBOP) or 20 carbonyldiimidazole (CDI) in a polar solvent, such as dimethylformamide, and an organic base, such as diisopropylethylamine. The conversion of a compound of Formula Xa to a compound of Formula XIa can be carried out in a two-step manner, involving an initial acid-catalysed cleavage of ketal, followed by base-catalysed hydrolysis of the tert-butyl ester. The acid can be a mineral 25 acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other cleavage method known in the prior art. The base can be an inorganic base, for example, lithium hydroxide, sodium hydroxide or potassium hydroxide. The compound of Formula XIa can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. 30 The hemi calcium salts of compound of Formula XIa can also be prepared from the corresponding lactones form of Formula XIa by following procedures well-known in the art. - 29 - WO 2004/106299 PCT/IB2004/001761 Scheme IV 0 0 0 OtBu HO

-

N 1 Formula XII O 0 0 OtBu

H

2 N N N 4N 0 RR Formula XXVIII N-N O O OtBu N O ' 0 R2 R1 Formula XXIX \NN

R

3 OH OH OH N O R2 Formula XXX N.-N O OH OH Formula I wherein R 4 N y Formula XXXI [Hemi calcium salt] - 30 - WO 2004/106299 PCT/IB2004/001761 SCHEME IV The compound of Formula XXXI can be prepared according to Scheme IV. Accordingly, treating acid chloride of compound of Formula XXII with ammonia affords a compound of Formula XXVIII, which on condensation with N,N-dimethylbenzamide 5 dimethylketal followed by treatment with hydrazine hydrate gives a compound of Formula XXIX, which on hydrolysis gives a compound of Formula XXX, which can be further converted to its hemi calcium salt. The reaction of compound of Formula XXII to give compound of Formula XXVIII can be carried out in presence of a chlorinating agent, such as oxalyl chloride or thionyl 10 chloride followed by reaction with anunonia. The condensation of a compound of Formula XXVIII with N, N dimethylbenzamide dimethylacetal followed by treatment with hydrazine hydrate affords compound of Formula XXIX. The conversion of a compound of Formula XXIX to a compound of Formula XXX 15 can be carried out in a two-step manner, involving an initial acid-catalyzed cleavage of ketal, followed by base-catalyzed hydrolysis of the tert-butyl ester. The acid can be a mineral acid, such as hydrochloric acid. The cleavage of ketal can be carried out by any other cleavage method known in the prior art. The base can be an inorganic base, for example, lithium hydroxide, sodium hydroxide or potassium hydroxide. 20 The compound of Formula XXX can be converted into its corresponding hemi calcium salt by following procedures well-known to a person ordinary skilled in the art. The calcium salts of compound of Formula XXX can also be prepared from the corresponding lactone form of Formula XXX by following procedures well-known in the art. 25 In the above schemes, where specific reagents, such as particular bases, reducing agents, solvents, etc., are mentioned, it is to be understood that other bases, reducing agents, solvents, etc., known to those skilled in the art may be used. Similarly, the reaction temperature and duration may be adjusted according to the desired needs. An illustrative list of particular compounds disclosed herein is given below (also 30 shown in Table I): (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(2-acetylphenylamino) carbonyl] pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 1) -31 - WO 2004/106299 PCT/IB2004/001761 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(3-acetylphenylamino) carbonyl] pyrrol- 1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 2) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-acetylphenylamino) carbonyl] pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 3) 5 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(2,4-dimethylphenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 4) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(cyclohexylamino) carbonyl)] pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 5) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl- 3 -phenyl-4-[(4-trifluoromethylbenzylamino) 10 carbonyl)]-pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 6) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl- 3 -phenyl-4-(morpholine-4-carbonyl) pyrrol-1 yl]-3,5-dihydroxy-heptanoic acid (Compound No. 7) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-(piperidine-1-carbonyl)-pyrrol-1 yl]-3,5-dihydroxy-heptanoic acid (Compound No. 8) 15 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl- 4 -[(4-hydroxymcthylphenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 11)

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl- 4 -[(4-methanesulfonylaminopheny amino) carbonyl]-pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 12)

(

3 R,5R)-7-[2-(4-fhiorophenyl)-5-isopropyl-3-phenyl-4-[(4-acetylaminophenylamino) 20 carbonyl]-pyrrol-1-ylj-3,5-dihydroxy-heptanoic acid (Compound No. 13) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-( 4 -cyanophenyl)-4-[(phenylamino) carbonyl)]-pyrrol- 1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 14) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-carboxyphenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. la), 25 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-acetoxymthylphenyl) amino) carbonyl]-pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 2a), (3R,5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[4-phenylthiocarbamoyl oxymethylphenyl)amino)carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 3a), 30 ( 3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-propionyloxymethyl phenyl)amino) carbonyl]-pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 4a),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4 octylcarbamoyloxymethyl phenyl)amino) carbonyl]-pyrrol- 1 -yl]-3,5-dihydroxy 35 heptanoic acid (Compound No. 5a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylacetoxymethyl phenyl)amino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 6a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylcarbamoyl 40 oxymethyl phenyl)amino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 7a), - 32 - WO 2004/106299 PCT/IB2004/001761 (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzoyloxymethyl phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 8a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl- 4 -[4-isonicotinoyloxymethyl 5 phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 9a), (3R, 5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-

[

4 -pyridin-4-ylcarbamoyl oxymethyl phenyl) amino) carbonyl]-pyrrol-1 -yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 1Oa), 10 (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylcarbamoyl phenyl) amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 11 a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl- 4 -[4-cyclohexylcarbamoyl phenyl) amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound 15 No. 12a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-methylcarbamoyl) phenyl)amino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 13a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzylcarbamoyl) 20 phenyl)amino) carbonyl]-pyrrol-1-ylJ- 3 ,5-dihydroxy-heptanoic acid (Compound No. 14a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(morpholine-4 carbonyl)-phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 15), 25 (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(piperidine-1 carbonyl)-phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 16), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzylamino phenyl)amino) carbonyl] -pyrrol- 1-yl] -3,5-dihydroxy-heptanoic acid (Compound 30 No. 17), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(1 hydroxyethyl)phenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 18),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(2-hydroxyethyl) 35 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 19),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-hydroxypropyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 20), 40 ( 3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-methoxymethy phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 21), - 33 - WO 2004/106299 PCT/IB2004/001761 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-ethoxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydrQxy-heptanoic acid (Compound No. 22), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-isopropoxymethyl 5 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 23),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-propoxymethyl phenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 24), 10 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 methoxymethoxymethylphenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 25), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl- 3 -phenyl-4-[(4-cyclohexyloxymethyl phenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound 15 No. 26), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-cyclopentyloxymethy phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 27), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzyloxymethyl 20 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 28) (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 chlorobenzyloxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 29), 25 ( 3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 methoxybenzyloxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 30),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 phenoxyniethylphenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid 30 (Compound No. 31),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-chlorophenoxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 32),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 35 acetylaminophenylamino) carbonyl]-pyrrol- 1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 33),

(

3 R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzoylamino phenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 34), 40 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl- 4 -[(4-benzenesulfonylamino phenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 36) -34- WO 2004/106299 PCT/IB2004/001761 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-phenyl-ureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 37), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-methyl-ureido) 5 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 38), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-benzyll-ureido) phenylanino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 39), 10 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-benzyl-thioureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 40), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-phenyl-thioureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound 15 No. 41), (3R,5R)-7-[2-(4-fluoropheny1)-5- isopropyl-3-phenyl-4-[4-(3-methyl-thioureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 42), 20 and their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymorphs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides. An illustrative list of compounds, which can be prepared by following Schemes III and IV is given below (also shown in Table I): 25 (3R,5R)-7-[2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-(3-phenyl-[1,2,4]oxadiazol-5-yl) pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 9) (3R,5R)-7-[2-(4-Fluoropheny10-5-isopropyl-3-phenyl-4-(5-phenyl-2H-[1,2,4]triazol-3-yl) pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 10) In Tables I and Ia, R 4 is the indicated structure, unless otherwise noted. - 35 - WO 2004/106299 PCT/IB2004/001761 Table I

R

4

R

2 OH /Y ~O OH 0 or R3 R 1 R 0 OH Y C. No. R1 R2 R3 R4 R I 4-Fluorophenyl Phenyl sopropyl ydrogen 2-Acetylphenyl 2 4-Fluorophenyl Phenyl Isopropyl ydrogen 3-Acetylphenyl 3 4-Fluorophenyl Phenyl Isopropyl - Hydrogen 4-Acetylphenyl 4 4-Fluorophenyl Phenyl Isopropyl - Hydrogen 2,4-Dimethylphenyl 5 -Fluorophenyl Phenyl Isopropyl ydrogen Cyclohexyl 6 4-Fluorophenyl Phenyl Isopropyl - Hydrogen 4-trifluoromethyl benzyl 7 4-Fluorophenyl Phenyl Isopropyl - -(CH2)2-0-(CH2) 2 . 8 -Fluorophenyl Phenyl Isopropyl -- (CH2)5 9* 4-Fluorophenyl Phenyl Isopropyl 1, 2

,

4 -Oxadiazinylphenyl 10* 4-Fluorophenyl Phenyl Isopropyl 1,2,4-Triazolylphenyl _ 11 4-Fluorophenyl henyl Isopropyl - Hydrogen -(Hydroxymethyl)phenyl 12 4-Fluorophenyl Phenyl Isopropyl Hydrogen -(Methylsulfonaniido)-phenyl 13 4-Fluorophenyl Phenyl Isopropyl Hydrogen -(Acetamido)phenyl 14 4-Fluorophenyl - Isopropyl - Hydrogen Phenyl cyanoPhen yl 5 * Hypothetical examples - 36 - WO 2004/106299 PCT/IB2004/001761 Table Ia 0

R

5 R N - 5 R2 N-Y R, Formula I wherein OH OH OH 0 Y =or 0 10 R1=4-fluorophenyl, R 2 = phenyl, R3=isopropyl, R 5 =hydrogen Compound No. R4 la COOH 2a acetoxymethyl 3a phenylthiocarbamoyloxymethyl 4a propionyloxymethyl 5a octylcarbamoyloxymethyl 6a phenylacetoxymethyl 7a phenylcarbamoyloxymethyl 8a benzoyloxynethyl 9a isonicotinoyloxymethyl 10a pyridin-4-ylcarbamoyloxymethyl 11a phenylcarbamoyl 12a cyclohexylcarbamoyl 13a methylcarbamoyl 14a benzylcarbamoyl 15 morpholine-4-carbonyl 16 piperidine-1-carbonyl 17 benzylamino 18 (1-hydroxyethyl) 19 (2-hydroxyethyl) 20 (3-hydroxypropyl) 21 methoxymethyl 22 ethoxymethyl 23 isopropoxymethyl 24 propoxymethyl 25 methoxymethoxymethyl 26 cyclohexyloxymethyl 27 cyclopentyloxynethyl 28 benzyloxymethyl -37- WO 2004/106299 PCT/IB2004/001761 Compound No. R4 29 4-chlorobenzyloxymethyl 30 4-methoxybenzyloxymethyl 31 phenoxymethyl 32 4-chlorophenoxymethyl 33 acetylamino 34 Benzoylamino 36 benzenesulfonylamino 37 3-phenyl-ureido 38 3-methyl-ureido 39 3-benzyl-ureido 40 3-benzyl-thioureido 41 3-phenyl-thioureido 42 3-methyl-thioureido The term "pharmaceutically acceptable" means approved by regulatory agency of the federal or a state government or listed in the U.S. Pharmacopeia or other generally recognized pharmacopeia for use in animals, and more particularly in humans. 5 The term "pharmaceutically acceptable salts" refer to a salt prepared from pharmaceutically acceptable monovalent, divalent or trivalent non-toxic metal or organic base. Examples of such metal salts include, but are not limited to, lithium, sodium, potassium, calcium, magnesium, zinc, aluminum, and the like. Examples of such organic bases include, but are not limited to, amino acid, ammonia, mono-alkyl ammonium, 10 dialkyl ammonium, trialkyl ammonium and N-methyl glucamine and the like. The free acid forms of compounds of the present invention may be prepared from the salt forms, if desired, by contacting the salt with dilute aqueous solution of an acid such as hydrochloric acid. The base addition salts may differ from the free acid forms of the compounds of this invention in such physical characteristics as solubility and melting point. 15 The term "pharmaceutically acceptable solvates" refers to solvates with water (i-e hydrates) or pharmaceutically acceptable solvents, for example solvates with ethanol and the like. Such solvates are also encompassed within the scope of the disclosure. Furthermore, some of the crystalline forms for compounds described herein may exist as polymorphs and as such are intended to be included in the scope of the disclosure. 20 The present invention also includes within its scope prodrugs of these agents. In general, such prodrugs will be functional derivatives of these compounds, which are readily convertible in vivo into the required compound. Conventional procedure for the -38- WO 2004/106299 PCT/IB2004/001761 selection and preparation of suitable prodrug derivatives are described, for example, in "design of prodrugs", ed. H Bundgaard and, Elsevier, 1985. The present invention also includes metabolites, which become active upon introduction into the biological system. 5 The compounds of the invention possess two chiral centers, they may, therefore, exist as enantiomers and diastereomers. It is to be understood that all such isomers and racemic mixtures therefore are encompassed within the scope of the present invention. Preferably, this invention contemplates compounds only with 3R and 5R configuration. The crystalline or amorphous forms of compounds disclosed herein may exist as 10 polymorphs and as such are intended to be included in the present invention. Pharmaceutical compositions comprising compounds disclosed herein, their pharmaceutically acceptable salt, pharmaceutically acceptable solvates, or polymorphs, and pharmaceutically acceptable carrier or excipient are also disclosed herein. The compositions provided herein, both those containing one disclosed compound 15 and those containing two or more compounds, may be suitable for oral or parenteral administration. The compositions may be formulated to provide immediate or sustained release of the therapeutic compounds. The compounds described herein can be administered alone but will generally be administered as an admixture with a suitable pharmaceutically acceptable carrier. The term "pharmaceutically acceptable carrier" is 20 intended to include non-toxic, inert solid, semi-solid, liquid filter, diluent, encapsulating materials or formulation auxiliaries of any type. Solid form preparations for oral administration may include capsules, tablets, pills, powder, granules or suppositories. For solid form preparations, the active compound is mixed with at least one inert, phannaceutically acceptable excipient or carrier, for 25 example, sodium citrate, dicalcium phosphate and/or a filler, an extender, for example, starch, lactose, sucrose, glucose, mannitol or silicic acid; binders, for example, carboxymethyl cellulose, alginates, gelatins, polyvinylpyrroledinone, sucrose, or acacia; disintegrating agents, for example, agar-agar, calcium carbonate, potato starch, aliginic acid, certain silicates or sodium carbonate; absorption accelerators, for example, 30 quaternary ammonium compounds; wetting agents, for example, cetyl alcohol, glycerol, or mono stearate adsorbents, for example, Kaolin; lubricants, for example, talc, calcium -39- WO 2004/106299 PCT/IB2004/001761 stearate, magnesium stearate, solid polyethyleneglycol, or sodium lauryl sulphate, and mixtures thereof. In case of capsules, tablets, and pills, the dosage form may also comprise buffering agents. 5 The solid preparation of tablets, capsules, pills, or granules can be accomplished with coatings and/or shells, for example, enteric coatings and other coatings well known in the pharmaceutical formulating art. Liquid form preparations for oral administration can include pharmaceutically acceptable emulsions, solutions, suspensions, syrups and elixirs. For liquid form 10 preparations, the active compound can be mixed with water or other solvent, solubilizing agents and emulsifiers, for example, ethyl alcohol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol, dimethyl formamide, oils (for example, cottonseed, ground corn, germ, live, caster and sesamine oil), glycerol and fatty acid ester of sorbitan and mixture thereof. 15 Besides inert diluents, the oral compositions can also include adjuvants, for example, wetting agents, emulsifying agents, suspending agents, sweetening agents, flavoring agents and perfuming agents. The fonnulations as described herein may be formulated so as to provide quick, sustained, or delayed release of the active compound after administration to the patient by 20 employing procedures well-known to the art. The term "patient" as used herein refers to a human or non-human mammal, which is the object of treatment, observation or experiment. The pharmaceutical preparations can be in unit dosage forms, and in such forms, the preparations are subdivided into unit doses containing appropriate quantities of an 25 active compound. The amount of a compound disclosed herein that will be effective in the treatment of a particular disorder or condition can be determined by standard clinical techniques. In addition, in vitro or in vivo assays may optionally be employed to help identify optimal dosage ranges. 30 Examples set forth below demonstrate general synthetic procedures for preparation of particular representative compounds. The examples are provided to - 40 - WO 2004/106299 PCT/IB2004/001761 illustrate particular aspects of the disclosure, and do not constrain the scope of the present invention as defined by the claims. EXAMPLES General Procedure 5 Schemes I and Ib Step 1: Preparation of p-ketoamide-1 (Formula IV and IVb) A mixture of P ketoester (Formula II, 1 equiv.), amine (Formula III, 1 equiv) 1,2 ethylene diamine (0.01 equiv) in xylene was refluxed with the azeotropic removal of water. After the completion of reaction, solvent was evaporated & the residue purified on 10 column (silica gel; 100-200 mesh). Compounds of Formula IVb can be prepared analogously. The following intennediates were prepared following above general procedure 4-Methyl-3-oxo-pentanoic acid ( 3 -acetylphenyl)-anide H NMR(CDC1 3 ):S 1.19 (d, J=6.9Hz, 611), 2.61 (s, 31), 2.75 (sep, J=6.9Hz, 1H), 3.64 (s, 15 2H), 7.43 (t, J=7.8Hz, 111), 7.71 (d, J=7.8Hz, 1H), 7.87 (d, J=8.lHz, 1H), 8.08 (s, 1H), 9.44 (brs, 1H); MS (positive ion mode): m/z 248 [M+1]; Yield: 49% 4-Methyl-3-oxo-pentanoic acid (4-acetylphenyl)-amide 1 H NMR(CDCl 3 ):S 1.19 (d, J=6Hz, 6H), 2.58 (s, 3H), 2.75 (sep, J=6Hz, 1H), 3.65 (s, 2H), 20 7.67 (d, J=6Hz, 2H), 7.95 (d, J=6Hz, 2H), 9.60 (s, 1H), MS (positive ion mode): m/z 248 [M+1]; Yield 54% 4-Methyl-3-oxo-pentanoic acid (2,4-dimethylphenyl)-anide 'H NMR(CDCl 3 ):6 1.18 (d, J=6Hz, 6H), 2.29 (s, 6H), 2.73 (Sep, J=6Hz, 111), 3.64 (s, 2H), 25 7.00 (s, 211), 7.76 (d, J=6Hz, 1H), 9.11 (brs, 1H); MS (positive ion mode): m/z 234 [M+l] Yield 72% 4 -Methyl-3-oxo-pentanoic acid 4-trifluoromethylbenzyl aide 1H NMR(CDC13):3 1.14 (d, J=6Hz, 6H), 2.70 (sept, J=6Hz, 1H-), 3.53 (s, 2H1), 4.53 (d, 30 J=6Hz, 2H), 7.40 (d, J=6Hz, 211), 7.59 (d, J=6Hz, 2H); MS (positive ion mode): m/z 287 -41- WO 2004/106299 PCT/IB2004/001761 4 -Methyl-1-piperidin-1-yl-pentane-1,3-dione IH NMR(CDCl 3 , 300MHz):6 1.14 (d,J=6Hz, 6H), 1.57-1.65 (in, 6H), 2.76 (brs, 1H), 3.20-3.75 (in, 6H); 5 4-Methyl-3-oxo-pentanoic acid phenylamide Step 2: Preparation of p-ketoamide-2 (Formula VI and VIb) To p-ketoamide-1 (Formula IV, 1 equiv) in hexane was added to P-alanine (0.18 equiv), aldehyde (Formula V, 1.1 equiv) and glacial acetic acid (0.16 % w/w of p ketoamide-1). The resulting suspension was heated under reflux with the azeotropic 10 removal of water. The reaction mixture was cooled and product was isolated by filtration. The product was purified by washing the precipitate with hot hexane, water and dried in vacuo to afford p-ketoamide-2. Compounds of Formula VIb can be prepared analogously. The following intermediates were prepared following above general procedure 2 -Benzylidine-4-metlyl-3-oxo-pentanoic acid (3-acetylphenyl)-amide; Isomer-] 15 1H NMR(CDCl 3 ):S 1.1 (d, J=6.9Hz, 6H), 2.50-2.70 (in, 4H), 7.28-7.52 (in, 6H), 7.73 (d, J=7.2Hz, 1H), 7.93 (d, J=8.lHz, 1H), 8.19 (d, J=9.9Hz, 2H), 9.23 (s, 1H); MS (positive ion mode): m/z 336 [M+l]; Yield: 13% 2 -Benzylidine-4-nethyl-3-oxo-pentanoic acid ( 3 -acetylphenyl)-amide; Isomer-2 20 1H NMR(CDCl 3 ):5 1.24 (d, J=9Hz, 6H), 2.60 (s, 3H), 3.39 (sep, J=6Hz, 1H), 7.33-7.98 (in, 1111); MS (positive ion mode): m/z 336 [M+1]; Yield: 32% 2 -Benzylidene-4-methyl-3-oxo-pentanoic acid (4-acetylphenyl)-amide 'H NMR(CDCl 3 ):S 1.23 (d, J=6.6Hz, 611), 2.58 (s, 311), 3.37 (Sep, J=6.6Hz, 111), 7.27 25 7.42 (in, 3H), 7.49-7.73 (m,5H), 7.95 (d, J=8.7Hz, 2H); MS (positive ion mode): m/z 336 [M+1] Yield 48% 2 -Benzylidene-4-methyl-3-oxo-pentanoic acid (2,4-dinethylphenyl)-amide 30 'H NMR(CDCl 3 ):S 1.23 (d, J=6Hz, 6H), 1.99 (s, 1H), 2.29 (s, 1H), 3.38 (Sep,J=6Hz, 1H), 6.97 (s, 1H), 7.04 (d, J=6Hz, 1H), 7.30 (s, 1H), 7.35-7.45 (in, 3H), 7.53-7.72 (in, 7H) MS (positive ion mode): m/z 323 [M+1]; Yield 50% -42- WO 2004/106299 PCT/IB2004/001761 2-Benzylidine-4-methyl-3-oxo-pentanoic acid 4-trifluoromethylbenzyl amide 'H NMR(CDC 3 , 30MHz):S 1.19 (d, J=6.9Hz, 6H), 3.30 (sept, J=6.9Hz, 1H), 6.16 (brs, 111), 7.26-7.60 (in, 10H) 5 2 -Benzylidene-4-methyl-1-piperidin-1-yI-pentane-1, 3-dione H NMR(CDC1 3 , 300 MTfz):8 0.88-0.97 (in, 2H), 1.15-1.35 (m, 8H), 1.43-1.62 (m, 4H), 3.13-3.30 (in, 311), 3.61 (brs, 1H), 3.78 (brs, 1H), 7.38 (brs, 3H), 7.54 (brs, 3H); MS (positive ion mode): m/z 286 (M*+1) 10 2

-(

4 -Cyanobenzylidene)-4-nethyl-3-oxo-pentanoic acid phenylamnide 'H NMR (CDCl 3 ):S 1.23 (d, J=6Hz, 611), 3.34 (Sep, J=6Hz, 1H), 7.18 (t, J=6Hz, 1H), 7.36 (t, J=6Hz, 2H), 7.48 (d, J=6Hz, 2H), 7.57 (s, 1H), 7.65 (s, 4H), 7.81 (s, 1H); MS (positive ion mode): m/z 319 [M+1]; Yield: 67% 15 Step 3: Preparation of Diketone (Formula VIII and VIIb) P-ketoamide-2 (Formula VI, 1 equiv), aldehyde (Formula VII, 1.1 equiv), triethylamine (1 equiv) ethanol and 3-ethyl-5- (2-hydroxyethyl)-4-methyl thiazolium bromide (0.2 equiv) were placed in a vial. The contents were flushed with N 2 and the vial was capped immediately and was heated to 78'C. After the completion of reaction, 20 contents were cooled and triturated with ethyl acetate. The organic layer was washed with 6N hydrochloric acid, water, dried over anhydrous sodium sulphate, concentrated on rotary evaporator and residue was purified on a chromatographic column (silica gel, 100 200 mesh). Compounds of Formula VIIIb can be prepared analogously. The following intermediates were prepared following above general procedure 25 2

-[

2 -(Fluorophenyl)-2-oxo-1-phenyl-ethyl]-4-methtyl 3-oxo-pentanoic acid (3 acetylphenyl)-anide 'H NMR(CDCl 3 ):S 1.15 (d, J=6Hz, 3H), 1.20 (d, J=6Hz, 3H), 2.58 (s, 3H), 2.99 (sep, J=6Hz, 1H), 4.61 (d, J=12Hz, 1H), 5.38 (d, J=12Hz, 111), 7.05 (t, J=9Hz, 2H), 7.15-7.44 (in, 6H), 7.54-7.72 (m, 4H), 7.94-8.05 (m, 2H); MS (positive ion mode): m/z 460 [M+1]; 30 Yield: 55% - 43 - WO 2004/106299 PCT/IB2004/001761 2

-[

2

-(

4 -Fluorophenyl)-2-oxo-1-phenylethyl]-4-methyl-3-oxo-pentaioic acid (4 acetylphenyl)-amide H NMR(CDCl 3 ):S 1.16 d, J=6.9Hz, 3H), 1.23 (d, J=6.9Hz, 3H), 2.55 (s, 3H), 2.99 (Sep, J=6.6Hz, 1H), 4.56 (d, J=10.5Hz, 1H), 5.35 (d, J=10.8Hz, 1H), 7.04 (t, J=8.7Hz, 3H), 5 7.18-7.37 (brm, 6H), 7.48 (s, 1H), 7.86 (d, J=8.4Hz, 2H), 7.87-8.03 (m, 2H); MS (positive ion mode): m/z 460 [M+1]; Yield 64% 2

-[

2

-(

4 -Fluorophenyl)-2-oxo-1-phenylethyl-4-nethyl-3-oxo-penitanoic acid (2,4 dimethylphenyl)-amide 10 1H NMR(DMSO-d 6 ):6 0.99 (d, J=6.6Hz, 3H), 1.19 (d, J=6.9Hz, 3H), 1.67 (s, 3H), 2.18 (s, 3H), 3.00 (Sep, J=6.9Hz, 1H), 4.94 (d, J=11.1Hz, 1H), 5.36 (d, s=10.8Hz, 1H), 6.68 (d, J=8.1Hz, 1H), 6.82-6.93 (m, 2H), 7.17-7.45 (in, 7H), 8.08-8.24 (in, 2H), 9.60 (brs, 1H) MS (positive ion mode): m/z 446 [M+ 1]; Yield 66% 15 2-[2-(4-Fluorophenyl)-2-oxo-1-phenyl-ethyl]-4-methyl-3-oxo-pentanoic acid 4 trifluoromethylbenzyl amide 1H NMR(CDCl 3 ,300MHz):S 1.10 (d, J=6.6Hz, 3H), 1.16 (d, J=7.2Hz, 3H), 2.88 (sept, J=6.9Hz, 1110, 4.15 (dd, J=15 & 4.8Hz, 1H), 4.40 (dd, J=15.9 & 6.6Hz, 1H), 4.46 (d, J=11.1Hz, 1H), 5.32 (d, J=10.8Hz, 1H), 5.80 (brs, 1H), 6.89 (d, J=7.8Hz, 2H), 6.97 (t, 20 J=8.4Hz, H), 7.45 (d, J=7.5Hz, 211), 7.94-7.98 (m, 2H); MS (positive ion mode): m/z 500 (M+1}

I-(

4 -Fluorophenyl)-5-methyl-2-pentyl-3-(piperidine-1-carbonyl-hexane-1,4-dione 'H NMR(CDC 3 , 300MHz):S 1.05 (d, J= 6 .9Hz, 3H), 1.19 (d, J=7.1Hz, 4H), 1.45 (brs, 5H), 25 2.62 (sept, J=6.8Hz, 1H), 2.95-3.15 (in, 1H), 3.20-3.40 (m, 2H), 3.45-3.60 (in, 1H), 4.99 (d, J=10.5Hz, 1H), 5.34 (d, J=10.6Hz, 1H), 7.03 (t, J=8.5Hz, 2H), 7.24 (brs, 5H), 7.97 8.07 (in, 2H); MS (positive ion mode): m/z 493 (M*+1) 2-[1-(4-Cyanophenyl)-2-(4-fluorophenyl)-2-oxo-ethyl]-4-methyl-3-oxo-pentanoicacid 30 phenylanide MS (positive ion mode): m/z 443 [M+1] Step 4: Preparation of Pyrrole (Formula X and Xb) A mixture of diketone (Formula VIII, 1 equiv), amine (Formula IX, 1.00, equiv) and pivalic acid (1.03 equiv) in heptane:toluene:tetrahydrofuran (4:1:1) was refluxed and 35 water was removed using Dean Stark trap. After the completion of reaction, solvents were removed and the residue was dissolved in ethyl acetate. The organic layer was washed in -44- WO 2004/106299 PCT/IB2004/001761 saturated sodium bicarbonate, water, dried over anhydrous sodium sulphate, concentrated on rotary evaporator and the residue was purified on a chromatographic column (silica gel, 100-200 mesh). Compounds of Formula Xb can be prepared analogously. The following intermediates were prepared following above general procedure 5 (6-{2-[3-(3-Acetylphenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-pyrrol-1 yU-ethyl}-2, 2-dinethyl-[I, 3]dioxan-4-yl)-acetic acid tert-butyl ester 'H NMR(CDC 3 ):5 1.30 (s, 3H), 1.36 (s, 311), 1.43 (s, 9H), 1.53 (d, J=6Hz, 6H), 1.67 (brs, 2H), 2.20-2.43 (m, 211), 2.52 (s, 3H), 3.52-3.75 (m, 2H), 3.76-3.88 (m, 1H), 4.00-4.22 (m, 2H), 6.85-7.05 (m, 311), 7.10-7.51 (m, 10H), 7.58 (d, J=9Hz, 1H); MS (positive ion mode): 10 m/z 697 [M+1]; Yield: 23%

(

6

-{

2

-[

3

-(

4 -Acetylphenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-pyrrol-1 yl]-ethyl}-2, 2-dimethyl-[i, 3]dioxan-4-yl)-acetic acid tert-butyl ester 1H NMR(CDC1 3 ):8 1.31 (s, 3H), 1.38 (s, 3H), 1.44 (s, 9H), 1.53 (d, J=9Hz, 6H), 1.66 (brs, 2H), 2.22-2.49 (m, 2H), 2.54 (s, 3H), 3.49-3.75 (m, 2H), 4.00-4.25 (m, 2H), 7.01 (t, 15 J=6Hz, 2H1), 7.06-7.26 (m, 10H), 7.81 (d, J=9Hz, zH); MS (positive ion mode): m/z 698 [M+1]; Yield: 14% (6-{2-[3-(2, 4 -Dimethylphenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-pyrrol 1-yl]-ethyl}-2,2-dimethyl-[1,3]dioxan-4-yl)-acetic acid tert-butyl ester H NMR(CDCl 3 ):S 1.30 (s, 3H), 1.36 (s, 3H), 1.43 (s, 9H), 1.52 (d, s=6Hz, 6H), 1.65-1.76 20 (m, 2H), 2.18-2.32 (m, 4H), 2.33-2.47 (m, 1H), 3.48 (Sep, J=6Hz, 1H), 3.63-3.90 (in, 2H), 4.0-4.25 m, 2H), 6.72 (s, 1H), 6.81 (s, 1H), 6.99 (t, S=6Hz, 3H), 7.07-7.25 (m, 7H), 7.88 (d, J=6Hz, 1H); MS (positive ion mode): m/z 684 [M+1]; Yield 21% (6-{2-[2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-(4-trifluoromethylbenzylcarbamoyl) pyrrol-1-yl]-ethyl}-2,2-dinethyl-[1,3]dioxan-4-yl) acetic acid tert-butyl ester 25 'H NMR(CDCl 3 ,300MHz):6 0.8-1.2 (m, 2H), 1.29 (s, 3H), 1.35 (s, 3H), 1.43 (s, 9H), 1.63 (brs, 2H), 2.22-2.27 (in, 1H), 2.38 (dd, J=15.0 & 6.0Hz, 1H), 9.36-3.50 (m, 1H), 3.6-3.7 (m, 1H), 3.71-3.85 (m, 1H), 4.1-4.25 (m, 2H), 4.38 (d, J=6.OHz, 2H), 7.02-7.16 (in, 12H), 7.41 (d, J=9.0Hz, 2H); MS (positive ion): m/z 737.4 [M+1]* 6-{2-[2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-(piperidine-1-carbonyl)-pyrrol-1-yl] 30 ethyl}-2,2-dimethyl-[1, 3]dioxan-4-yl)-acetic acid tert-butyl ester IH NMVR(CDCl 3 , 300MHz):S 0.99-1.60 (m, 29H), 2.17-2.52 (m, 2H), 2.80-3.25 m, 3H), 3.35-3.50 (m, 1H), 3.65-3.90 (m, 3H), 3.90-4.25 (m, 3H), 6.91-7.19 (m, 9H); MS (positive ion mode): m/z 646 (M*+1) - 45 - WO 2004/106299 PCT/IB2004/001761

(

6

-{

2 -[3-(4-cyanophenyl)-5-isopropyl-2-(4-fluorophenyl)- 4 -(phenylamino) carbonyl pyrrol-1-yl]-ethyl}-2,2-dimethyl-[1, 3]dioxan-4-yl) acetic acid tert-butyl ester H NMR (CDCl 3 ):6 1.30 (s, 3H), 1.36 (s, 3H), 1.44 (s, 9H), 1.50 (d, J=6.9Hz, 6H), 1.67 (brs, 3H), 1.55-1.75 (brm, 3H), 2.20-2.40 (in, 2H), 3.38 (sep, J=6.6Hz, 1H), 3.63-3.88 (in, 5 2H), 3.97-4.24 (in, 2H), 6.85 (s, 1H), 6.96-7.48 (in, 12H); MS (positive ion mode): m/z 680 [M+1]; Yield: 20% Step 5: Preparation of hemi calcium salt of compound of Formula XI and XIb (a) To a solution of a compound of Formula X in methanol and tetrahydrofuran (1:1) was added 1N hydrochloric acid (3 equiv) and the mixture was stirred at ambient 10 temperature. After the complete hydrolysis of the ketal, the reaction mixture was cooled to 0 0 C and sodium hydroxide pellets (6 equiv) were added. The reaction was then stirred at ambient temperature. At the end of ester hydrolysis, solvents were removed and the residue was dissolved in water; aqueous layer was washed with ether, and was neutralized with IN hydrochloric acid. The organic phase was extracted into ethyl acetate, and 15 concentrated. The residue was then purified on a chromatographic column (silica gel 100 200 mesh). (b) To an aqueous solution of sodium salt of acid (is prepared by adding 1 equivalent IN sodium hydroxide solution) was added dropwise an aqueous solution (IM) of calcium acetate (0.55 equiv). White precipitate was obtained, which was filtered off, 20 washed with copious amount of water, and dried in vacuo. Compounds of Formula X~b and XIIb can be formed analogously. The following compounds were prepared following above general procedure Hemi calcium salt of (3R,5R)-7-[ 2

-(

4 -fluorophenyl)-5-isopropyl-3-phenyl-4-[(3 acetylphenylamino) carbonyl]-pyrrol-1-yl-3,5-dihydroxy-heptanoic acid 25 1H NMR(DMSO-d 6 ):5 1.23 (brs, 2H), 1.38 (d, J=6Hz, 6H), 1.63 (brs, 2H), 1.90-2.15 (in, 2H), 3.52 (brs, 1H), 3.76 (brs, 2H), 3.99 (brs, 1H), 6.95-7.45 (in, 10H), 7.60 (d, J=7.5Hz, 1H), 7.71 (d, J=7.5Hz, 1H), 8.15 (s, 1H), 9.98 (s, 1H, D 2 0 exchanged); MS (positive ion mode): m/z 601 [Acid+l]; Yield: 21.35; m.pt: 167.5-204 0 C 30 Hemi calcium salt of (3R,5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[(4 acetylphenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid - 46 - WO 2004/106299 PCT/IB2004/001761 'H NMR(DMSO-d,):5 1.24 (brs, 2H), 1.37 (d, 3=6Hz, 6H), 1.58 (brs, 2H), 1.88-1.99 (m, 1H), 2.00-2.12 (m, 1H), 3.53 (brs, 1H), 3.73 (brs, 2H), 3.96 (brs, 1H), 7.09 (brs, 5H), 7.14 7.37 (m, 4H), 7.66 (d, J=9 Hz, 2H), 7.85 (d, J=9 Hz, 2H), 10.21 (s, 1H, D 2 0 exchanged); MS (positive ion mode): m/z 601 [Acid+1]; Yield 23%; m.pt 188.9-216.5 0 C 5 Hemi calcium salt of (3R, 5R)- 7

-[

2 -(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[(2,4 dimethylphenylamino) carbonyl]-pyrrol-1-yl-3,5-dihydroxy-heptanoic acid H NMR(DMSO):8 1.29 (brs, 2H), 1.31-1.76 (m, 11H), 1.87-2.01 (dd, J=15 & 6Hz, 1H), 2.02-2.15 (dd, J=15 & 3Hz, 1H), 2.19 (s, 3H), 3.59 (brs, 1H), 3.76 (brs, 2H), 3.95 (brs, 10 1H), 6.85-6.95 (m, 2H), 7.05-7.33 (m, 1OH), 8.78 (s, 1H, D 2 0 exchanged); MS (positive ion mode): m/z 587 [Acid+1]; Yield 45%; m.p 172.6-198.9'C Hemi calcium salt of (3R,5R)- 7

-[

2 -(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[(4 trifluoromethylbenzylamino) carbonyl)]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid 15 'HNMR(DMSO-d 6 ,300MHz):5 1.15-1.24 (m, 2H), 1.31 (d, J=6Hz, 6H), 1.48-1.56 (m, 2H), 1.84 (dd, J=158, 7.8Hz, 1H), 2.01 (dd, J=15 &4.2Hz, 1H), 3.15-3.33 (m, 1H), 3.42 (brs, 1H), 3.50 (brs, 1H), 3.68-3.73 (m, 2H), 3.80-4.02 (m, 1H), 4.29 d, J=5.4Hz, 1H), 6.99 (brs, 2H), 7.05 (brs, 3H), 7.12-7.23 (m, 6H), 7.50 (d, J=8.1Hz, 2H), 8.24 (t, J=5.4Hz, 1H); MS (positive ion mode): m/z 641 (acid+1) 20 Hemi calcium salt of (3R,5R)- 7 -[2-( 4 -fluorophenyl)-5-isopropyl-3-phenyl-4-(piperidine-1 carbonyl)-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid 'H NMR(DMSO-d 6 , 300MHz, D 2 0 exchanged):8 1.08-1.13 (m, 2H), 1.24 (brs, 7H), 1.27 (d, J=9Hz, 6H), 1.43 (brs, 2H), 2.02 (dd, J=15 & 6Hz, 1H), 2.15-2.19 (in, 111), 2.88-2.95 25 (m, 2K), 3.12-3.24 m, 2H), 3.64-3.69 (m, 3H), 6.95 (d, J=6Hz, 2H), 7.05-7.15 (m, 5K), 7.25 (brs, 2H), 8.08 (s, 1H). Hemi calcium salt of (3R,5R)- 7

-[

2

-(

4 -fluorophenyl)-5-isopropyl-3-(4-cyanophenyl)-4 [(phenylamino) carbonyl)]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid 30 'H NMR (DMSO-d 6 ):S 1.24 (brs, 2H), 1.37 (d, J=6Hz, 6H), 1.45-1.73 (m, 2K), 1.87-2.15 (in, 2H), 3.10-3.60 (m, 2H), 3.70-3.90 (brm, 2H), 3.91-4.08 (brm, 1H), 7.01 (t, J=6Hz, iH), 7.13-7.35 (m, 8H), 7.45-7.63 (m, 4H), 10.02 (s, 1H, D 2 0 exchanged); MS (positive ion mode): m/z 584 [Acid+1]; Yield: 87%; m.pt. 197.7-222.1*C - 47 - WO 2004/106299 PCT/IB2004/001761 SCHEME Ia Step 1: Preparation of compound of Formula XIV Compound XIII (prepared following the appropriate steps of Scheme I to produce a compound of Formula X with appropriate substitution) was dissolved in tetrahydrofuran: 5 methanol (1:2) mixture and IN lithium hydroxide (equiv) was added. The reaction mixture was stirred at 0 0 C for 12 to 15 hours. After completion of reaction, reaction mixture was acidified and the solvent was evaporated under reduced pressure to get crude product. The crude product was purified by column chromatography (silica gel -100-200 mesh) using 50% ethyl acetate in hexane. The following intermediates wee prepared in this fashion. 10 4-([1-[2-(6-tert-butoxycarbonylnethyl-2, 2-dimethyl-f[, 3]dioxan-4-yl)-ethylj-5-(4 fluorophenyl)- 2 -isopropyl-4-phenyl-1H-pyrrol-3-carbonyl]-amino}-benzoic acid 1 1 NMR(CDC1 3 ):5 1.03-1.11 (in, 1H), 1.26 (s, 3H), 1.30 (s, 3H), 1.43 (s, 911), 1.53 (d, J=7.2Hz, 3H), 1.65-1.69 (in, 2H), 2.23 (dd, J=15.6 & 6.3Hz, 1H), 2.40 (dd, J=15.6 & 6.3Hz, 1H), 3.63-3.71 (in, 2H), 3.75-3.8 (m, 1H), 4.05-4.20 (in, 2H), 6.96-7.20 (in, 12H), 15 7.90 (d, J=8.4Hz, 2H); MS (positive ion mode): m/z 698 (M +1); Yield = 51% Step 2: Preparation of compound of Formula XV Method A: Compound XIV (1 equiv) was dissolved in dry tetrahydrofuran and sodium borohydride (2 equiv) was added slowly in two to three fractions. The resulting 20 suspension was stirred for 5 minutes at 0 0 C. A solution of iodine (1 equiv) in tetrahydrofuran was added slowly at 0 4C and reaction mixture was stirred for 24 to 30 hours at an ambient temperature. At the end of reaction, solvent was evaporated to get crude product. The crude product was purified by column chromatography (silica gel, 100 200 mesh) using 25% ethyl acetate in hexane. 25 1H NMR(CDCl 3 , 300MIz):S 1.02=1.06 (m, 111), 1.26 (s, 3H), 1.33 (s, 311), 1.43 (s, 9H), 1.55 (d, J=6Hz, 6H), 2.21 (dd, J=15 & 6Hz, 1H), 2.38 (dd, J=15 & 6Hz, 1H), 2.40-4.17 (m, 5H), 4.58 (s, 211), 6.87-7.19 (in, 1311); MS (+ ve ion mode): m/z 685 (M+1); Yield = 87% 30 Method B: A mixture of compound of Formula XIV (1 equiv.) and tetrahydrofuran (4 mL, Dry) was placed in a 3 neck round bottom flask equipped with a reflux condenser, nitrogen was purged. The reaction mixture was heated at about 50 'C and borane - 48 - WO 2004/106299 PCT/IB2004/001761 dimethylsulphide (2 equiv.) was added dropwise over 1 hour. Water (6 mL) was added to the reaction mixture, solvent was evaporated. Solid residue was dissolved in ethyl acetate, washed with water and the aqueous layer was extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulphate, concentrated. The 5 crude product was purified by silica gel column chromatography using ethyl acetate and hexane as eluant. Yield: 2.16 g (73.72%) Step 3: Preparation of hemi calcium salt of Formula XVI 10 (a) To a solution of XV in methanol and tetrahydrofuran (1:1) was added iN hydrochloric acid (3 equiv) and the mixture stirred at an ambient temperature. After the complete hydrolysis of ketal, the reaction mixture was cooledto 0 0 C and sodium hydroxide pellets (6 equiv) were added. The reaction was then allowed to stir at ambient temperature. At the end of ester hydrolysis, solvents were removed and the residue was 15 dissolved in water; the aqueous layer was washed with ether, and neutralized with iN hydrochloric acid. The organic phase was extracted into ethyl acetate, and concentrated. The residue was then purified on column (silica gel 100-200 mesh). (b) To an aqueous solution of the sodium salt of the acid (prepared by adding 1 equivalent IN sodium hydroxide solution) was added dropwise an aqueous solution (1M) 20 of calcium acetate (0.55 equiv). White precipitate was obtained, which was filtered off and washed with copious amount of water, and dried in vacuo. The following compound was prepared similarly. Heni calcium salt of (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 hydroxynethylphenylamnino)carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid 25 'HNMR(DMSO-d 6 ):S 1.22-1.62 (M, 11H), 1.98 (dd, J=15 & 8.1Hz, 1H), 2.06-2.16 (in, 1H), 3.25-3.37 (m, 2H), 3.57 (brs, 2H), 3.80 (brs, 1), 4.43 (s, 2H), 7.03-7.28 (in, 12H), 7.50 (d, J=6H, 2H), 9.80 (s, 1H); MS (positive ion mode): m/z 589 (Acid+l); Yield 31%; m.p. = 189-204'C - 49 - WO 2004/106299 PCT/IB2004/001761 Scheme Ila Step I: Preparation of compound of Formula XVa A compound of Formula XIIIa (1 equiv.) and a mixture of IN hydrochloric acid:methanol:tetrahydrofuran (2:5:5) were stirred at room temperature for about 7 hours. 5 At the end of reaction, sodium hydroxide pellets (7 equiv.) were added and the reaction mixture was further stirred at room temperature for about 5 hours. Reaction mixture was concentrated and the residue was dissolved in distilled water and acidified to -pH with iN hydrochloric acid. The aqueous layer was extracted with ethyl acetate, washed with water, brine and dried over anhydrous sodium sulphate. Organic layer was concentrated 10 and adsorbed over silica gel (5% methanol-dichloromethane). The following compound was prepared by following above procedures (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-carboxyphenyl)aminio) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid Yield: 5g (84.6%) 15 Step II: Preparation of disodium salt of compound of Formula XVa A compound of XVa (1 equiv.), tetrahydrofuran:methanol (1:1) and sodium hydroxide (IN, 2 equiv.) solution were stirred at ambient temperature for about 2 hours. Disodium salt of compound of Formula XVa was isolated by evaporating solvent under reduced pressure. The residue was washed with diethylether, dried in vacuo to afford the 20 pure compound in a yield of 4.5g (84.9%). The following compound was prepared by following above procedures. Disodiun salt of (3R, 5R)- 7 -[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4 carboxyphenyl)anzino) carbonyl]-pyrrol-1-yl-3,5-dihydroxy-heptanoic acid H NMR (DMSO, 300 MI[Iz):6 1.135-1.179 (m, 2H), 1.365 (d, J=6.3Hz, 6H), 1.752 (brs, 25 4H), 1.752-1.779 (m, 111), 1.950-1.998 (m, 1H), 2.733 (s, 1H), 2.89 (s, 1H), 3.607-3.75 (m, 3H), 3.924-4.004 (m, 211), 6.99-7.07 (m, 5H), 7.155-7.247 (m, 4H), 7.4 (d, J=6Hz, 2H), 7.70 (d, J=9Hz, 2H), 9.827 (s, 1H); MS (positive ion mode): m/z 603.13 (Acid+ +1); Yield : 4.5g (84.9%). - 50 - WO 2004/106299 PCT/IB2004/001761 SCHEME II Preparation of Compound of Formula XIX To a solution of a compound of Formula XVIII (4.5 mmoles; prepared according to procedure as described in Tet. Let., 43:1161 (2002) and J Org. Chem., 50:438 (1985), 5 in toluene.(15 ml) was added a compound of Formula V (4.9 mmoles), piperidine (0.02 ml) and acetic acid (0.054 ml). The mixture was heated at reflux with azeotropic removal of water for about 4 to 6 hours. The reaction mixture was concentrated and the residue was extracted in dichloromethane. The organic layer was washed with 1N hydrochloric acid solution, sodium bicarbonate solution, brine, dried over anhydrous sodium sulphate, and 10 concentrated. The crude product was purified on a chromatographic column (silica gel, 100-200 mesh, 2% EtOAc-hexane). Preparation of compound of Formula XX A compound of Formula XIX (6.49 mmoles), a compound of Formula VII (7.14 mmoles), 3-ethyl-5- (2-hydroxyethyl)-4-methyl thiazolium bromide (1.298 mmoles), 15 triethylamine (6.49 nmoles), and ethanol (0.6 ml) were placed in a 30 ml vial, flushed with argon and the vial sealed properly. The reaction mixture was stirred at 70'C for about 12 to 15 hours. To the reaction mixture was added ethyl acetate, the mixture was washed with water, 6N hydrochloric acid, again with water and brine, dried over anhydrous sodium sulphate, and concentrated to give crude product. The crude product 20 was purified on a chromatographic column (silica gel 100-200 mesh) using 7% ethyl acetate in hexane. Preparation of compound of Formula XXI To a solution of Formula XX (4.62 mmoles) in heptane: toluene: tetrahydrofuran (4:1:1) was added a compound of Formula IX (6.99 mmoles) and pivalic acid (4.768 25 mmoles). The mixture was refluxed with azeotropic removal of water for about 22 to 25 hours. The reaction mixture was concentrated, ethyl acetate was added, the reaction mixture was washed with sodium bicarbonate solution and brine, dried over anhydrous sodium sulphate and concentrated to give the crude product. The crude product was purified on column (silica gel, 100-200 mesh) using 7% ethyl acetate in hexane. -51 - WO 2004/106299 PCT/IB2004/001761 Preparation of compound of Formula XXII To a solution of a compound of Fornula XXI (0.8g) in methanol: dioxan (2:8) mixture was added 10% palladium carbon (50% wet, 60% w/w). The resulting reaction mixture was hydrogenated at 40 psi for about 2.5 hours. After the reaction was over, the 5 reaction mixture was passed through celite and the resulting solution was concentrated under vacuum to give the required product, which was further used as such for next step. Preparation of compound of Formula X: path a To a solution of a compound of Formula XXII (1 equiv) in benzene at 0 0 C under argon, oxalyl chloride (2.0 equiv) was added dropwise. After the evolution of gas had 10 ceased, the reaction mixture was heated on oil bath at 70'C for 2 hours. The reaction mixture was evaporated to dryness. The residue was dissolved in benzene (dry) and added at ambient temperature to a solution of amine of formula III (1.1 equiv.) in benzene. The reaction mixture was then heated to 70'C until completion of reaction. Volatiles were removed in vacuo and the residue was purified on a chromatographic column (silica gel, 15 100-200 mesh). The following compound was prepared following above general procedure

(

6

-{

2

-[

3

-(

2 -Acetylphenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-pyrrol-1 yl]-ethyl}-2,2-dimethyl-[1,3]dioxan-4-yl)-acetic acid tert-butyl ester 1H NMR(CDC1 3 ,300MHz):S 1.0-1.15 (in, 1H), 1.30 (s, 1H), 1.33 (s, 3H), 1.44 (s, 9H), 20 1.48 (d, J=6.OHz, 6H), 2.23 (dd, J=15.0 & 6.0Hz, 1H), 2.35-2.5 (in, 4H), 3.35 (sept. J=6.OHz, 1H), 3.64-3.89 (in, 2H), 4.0-4.25 (in, 2H), 6.93-7.08 (in, 8H), 7.18-7.22 (in, 2H), 7.50 (d, J=9.OHz, 1H), 7.69 (d, J=6.OHz, 1H), 8.82 (d, J=9.0Hz, 1H), 11.02 (brs, 1H); MS (positive ion): m/z 697.500 [M+1]+; Yield= 59% Preparation of compound of Formula X: path b 25 To a solution of a compound of Formula XXII (1.2 mmole) in dimethylformamide (2.5 ml) was added diisopropylethylamine (2.4 mmole) and O-benzotriazol-1-yl N,N,N',N'-tetramethyl uronium hexafluorophosphate (HBTU) (1.2 mmoles). To the resulting clear solution was then added cyclohexylamine (1.2 mmoles) in dimethylformamide (0.5 ml). The reaction mixture was stirred at 50'C to 60'C overnight. 30 To the reaction mixture was added water and the mixture was extracted with dichloromethane, the organic layer was washed with water, brine, dried over anhydrous sodium sulphate and concentrated to get the crude product. The crude product was purified - 52 - WO 2004/106299 PCT/IB2004/001761 by column chromatography (silica gel, 100-200 mesh) using 10 % ethyl acetate in hexane. The following compound was prepared as per this protocol. (6-{2-[3-Cyclohexylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-pyrrol-1-yl] ethyl}-2,2-dimethyl-[l,3]dioxan-4-yl)-acetic acid tert-butyl ester 5 'H NMR(CDCl 3 , 300 MHz):S 0.7-0.88 (in, 2H), 0.97-1.05 (in, 2H), 1.20-1.30 (in, 4H), 1.30-1.34 (s, 3H), 1.43 (s, 9H), 1.47 (d, J=6.9Hz, 6H), 1.43-1.48 (in, 2H), 1.63 (brs, 3H), 2.25 (dd, J=15 & 6Hz, 1H), 2.35 (dd, J=15 & 6.9Hz, 1H), 3.35 (sept, J=6.9Hz, 1H), 3.69 3.81 (in, 3H), 3.85-4.15 (in, 1H), 4.15-4.25 (in, 1H), 6.91-6.99 (in, 311), 7.07-7.15 (in, 6H); MS (positive ion mode): m/z 661 (M*+1) 10 Preparation of hemi calcium salt of Formula XI (a) To a solution of a compound of Formula X in methanol and tetrahydrofuran (1:1) was added 1N hydrochloric acid (3 equiv) and the mixture stirred at ambient temperature. After the complete hydrolysis of ketal, the reaction mixture was cooled to 15 0*C and sodium hydroxide pellets (6 equiv) were added. The reaction was then stirred at ambient temperature. At the end of ester hydrolysis, solvents were removed and the residue was dissolved in water; the aqueous layer was washed with ether, and neutralized with 1N hydrochloric acid. The organic phase was extracted into ethyl acetate, and concentrated. The residue was then purified on a chromatographic column (silica gel 100 20 200 mesh). (b) To an aqueous solution of the sodium salt of the acid (prepared by adding 1 equivalent 1N sodium hydroxide solution) was added dropwise an aqueous solution (IM) of calcium acetate (0.55 equiv). White precipitate was obtained, which was filtered, washed with copious amount of water, and dried in vacuo. 25 The following compounds were prepared following above general procedure Hemi calcium salt of (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4 [(cyclohexylamino) carbonyl)]-pyrrol-1-y]-3,5-dihydroxy-heptanoic acid 1H NMR(DMSO-d 6 , D 2 0 exchanged, 300MHz):8 0.99 (brs, 2H), 1.2-1.35 (in, 5H), 1.35 1.50 (in, 711), 1.55 (in, 4H), 1.90-2.1 (m, 1H), 2.10-2.20 (in, 1H), 3.17-3.20 (in, 1H), 3.51 30 (brs, 1H), 3.73 (brs, 1H), 7.02-7.36 (in, 9H); MS (positive ion mode): m/z 565 (acid+1). Hemi calcium salt of (3R,5R)- 7

-[

2

-(

4 -fluorophenyl)-5-isopropyl-3-phenyl-4-[(2 acetylphenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid - 53 - WO 2004/106299 PCT/IB2004/001761 H NMR(DMSO-d 6 ,300M1z):8 1.10-1.25 (in, 2H), 1.39 (d, J=6.0Hz, 6H), 1.5-1.7 (in, 2H), 1.77 (dd, J=150 & 6.0Hz, 1H), 1.97 (dd, J=15.0 & 3.0Hz, 1H), 2.38 (s, 3H), 6.94 7.01 (in, 5H), 7.08-7.20 (in, 3H), 7.29-7.34 (in, 2H), 7.56 (t, J=9.OHz, 1H), 7.87 (d, J=6.OHz, 1H), 8.58 (d, 9.0Hz, 1H), 10.98 (s, 1H); MS (positive ion): m/z 601.300 5 [Acid+1]*; Yield= 28%; m. pt: 202.6-208.7'C. Scheme Ia Preparation of Compound of Formula XIX To a solution of a compound of Formula XVIII (4.5 mmoles; prepared according to procedure as described in Tet. Let., 4_3:1161 (2002) and J. Org. Chem., 50:438 (1985)) 10 in toluene (15 ml) was added a compound of Formula V (4.9 mmoles), piperidine (0.02 ml) and acetic acid (0.054 ml). The mixture was heated at reflux with azeotropic removal of water for about 4 to 6 hours. The reaction mixture was concentrated and the residue was extracted in dichloromethane. The organic layer was washed with IN hydrochloric acid solution, sodium bicarbonate solution, brine, dried over anhydrous sodium sulphate, and 15 was concentrated. The crude product was purified on a chromatographic column (silica gel, 100-200 mesh, 2% EtOAc-hexane). 1 H NMR(CDCl 3 , 300MHz):8 1.02 (d, J=6.9Hz, 6H), 2.65 (sept, J=7.2Hz, 1H), 5.26 (s, 2H), 7.25 (s, 2H), 7.25 (brs, 10H), 7.81 (s, 1H). ). isomer 2: 1 H NMR(CDC 3 , 300MHz): 6 1.02 (d, J = 6.9 Hz, 6H), 2.65 (sept, J= 6.9 Hz, 1H), 5.27 (s, 2H), 7.36 (brs, 10H), 7.82 (s, 20 1H).MS (+ ve ion mode): m/z 309 (M*+l); Yield: 70% Preparation of compound of Formula XX A compound of Formula XIX (6.49 moless, a compound of Formula VII (7.14 mmoles), 3-ethyl-5- (2-hydroxyethyl)-4-methyl thiazolium bromide (1.298 mmoles), triethylamine (6.49 moless, and ethanol (0.6 ml) were placed in a 30 ml vial, the reaction 25 was flushed with argon and the vial was sealed properly. The reaction mixture was stirred at 70'C for about 12 to 15 hours. To the reaction mixture was added ethyl acetate, the mixture was washed with water, 6N hydrochloric acid, again with water and brine, was dried over anhydrous sodium sulphate, and was concentrated to give crude product. The crude product was purified on a chromatographic column (silica gel 100-200 mesh) using 30 7% ethyl acetate in hexane. - 54 - WO 2004/106299 PCT/IB2004/001761 H NMR(CDCl 3 , 300MHz): (1:1 mixture of diastereomers)S 0.48 (d, J=6.9Hz, 3H), 0.91 (d, J=6.6Hz, 3H), 1.07 (d, J=6.6Hz, 3H), 1.21 (d,J=6.9Hz, 3H), 2.30 (sept, J=6.6Hz, 1H), 2.82 (sept, 6.6Hz, 1H), 4.76 (d, J=14Hz, 1H), 4.77 (d, J=12.3Hz, 1H), 5.33 (d, J=11.1Hz, 1H), 5.35 (d, J=11.lHz, 1H), 7.02 (t, J=8.4Hz, 6H), 7.22-7.29 (in, 8H), 7.75-7.99 (in, 4H); 5 MS (+ ve ion mode): m/z 433 (M+1). Yield: 72% Preparation of compound of Formula XXI To a solution of Formula XX (4.62 minmoles) in heptane:toluene:tetrahydrofuran (4:1:1) was added a compound of Formula IX (6.99 mmoles) and pivalic acid (4.76 8 mmoles). The mixture was refluxed with azeotropic removal of water for about 22 to 25 10 hours. The reaction mixture was concentrated, ethyl acetate was added, and the reaction mixture was washed with sodium bicarbonate solution and brine, was dried over anhydrous sodium sulphate and was concentrated to give the crude product. The crude product was purified on column (silica gel, 100-200 mesh) using 7% ethyl acetate in hexane. 15 'H NMR(CDC1 3 , 300MHz):S 0.99-1.08 (in, 2H), 1.25 (s, 3H), 1.34 (s), 1.43 (s, 9H), 1.96 (d, J=6Hz, 6H), 1.58-1.63 (in, 2H), 2.21 (dd, J=158.6Hz, 1H), 2.37 (dd, J=15 & 9Hz, 1H), 3.51 (sept, J=6Hz), 3.65 (brs, 1H), 3.75-3.85 (in, 1H), 4.00-4.25 (in, 2H), 5.03 (s, 2H), 6.83-7.25 (m, 14H). MS (+ ve ion mode): m/z 670 (M*+1). yield 74% Preparation of compound of Formula XXII 20 To a solution of a compound of Formula XXI (0.8g) in methanol:dioxan (2:8) mixture was added 10% palladium carbon (50% wet, 60% w/w). The resulting reaction mixture was hydrogenated at 40 psi for about 2.5 hours. After the reaction was over, the reaction mixture was passed through elite and the resulting solution was concentrated under vacuum to give the required product, which was further used as such for next step. 25 'H NMR(CDCl 3 , 300MHz):8 0.95-1.05 (m, 1H), 1.21-1.28 (m, 1H), 1.28 (s, 3H), 1.34 (s, 3H), 1.43 (s, 9H), 1.47 (d, J=7.1Hz), 1.59-1.65 (in, 2H), 2.22 (dd, J=15.2 & 6.1Hz, 1H), 2.35 (dd, J=15.2 & 6.1Hz, 1H), 3.61-3.66 (in, 2H), 3.67-3.86 (in, 111), 4.00-4.15 (m, 2H), 6.95 (t, J=9Hz, 2H), 7.06-7.15 (m, 7H) MS (+ ve ion mode): m/z 586 (M*+1) Yield 76% Preparation of compound of Formula Xa: path a 30 To a solution of a compound of Formula XXII (1 equiv) in benzene at 0 0 C under argon, oxalyl chloride (2.0 equiv) is added dropwise. After the evolution of gas ceases, - 55 - WO 2004/106299 PCT/IB2004/001761 the reaction mixture is heated on oil bath at 70*C for 2 hours. The reaction mixture is evaporated to dryness. The residue is dissolved in benzene (dry) and is added at ambient temperature to a solution of amine of Formula Ia (1.1 equiv.) in presence of triethylamine, in benzene. The reaction mixture is then heated to 70'C until completion of 5 reaction. Volatiles are removed in vacuo and the residue is purified on a chromatographic column (silica gel, 100-200 mesh). Preparation of compound of Formula Xa: path b To a solution of a compound of Fonnula XXII (1.2 mmole) in dimethylformamide (2.5 ml) is added diisopropylethylamine (2.4 mmole) and O-benzotriazol-1-yl-N,NN',N' 10 tetramethyl uronium hexafluorophosphate (HBTU) (1.2 mmoles). To the resulting clear solution is then added cyclohexylamine (1.2 nnoles) in dimethylformamide (0.5 ml). The reaction mixture is stirred at 50'C to 60'C overnight. To the reaction mixture is added water and the mixture is extracted with dichloromethane, the organic layer is washed with water, brine, is dried over anhydrous sodium sulphate and is concentrated to get the crude 15 product. The crude product is purified by column chromatography (silica gel, 100-200 mesh) using 10 % ethyl acetate in hexane. Preparation of hemi calcium salt of Formula XIa (a) To a solution of a compound of Formula Xa in methanol and tetrahydrofuran (1:1) is added 1N hydrochloric acid (3 equiv) and the mixture is stirred at' 20 ambient temperature. After the complete hydrolysis of ketal, the reaction mixture is cooled to 0 0 C and sodium hydroxide pellets (6 equiv) are added. The reaction is then stirred at ambient temperature. At the end of ester hydrolysis, solvents are removed and the residue is dissolved in water; the aqueous layer is washed with ether, and is neutralized with iN hydrochloric acid. The organics phase is extracted into ethyl acetate, and 25 concentrated. The residue is then purified on a chromatographic column (silica gel 100 200 mesh). (b) To an aqueous solution of the sodium salt of the acid (is prepared by adding 1 equivalent iN sodium hydroxide solution) is added dropwise an aqueous solution (IM) of calcium acetate (0.55 equiv). White precipitate is obtained, which is filtered, is washed 30 with copious amount of water, and is dried in vacuo. The following compounds can be prepared following scheme Lb or IIa or both. - 56 - WO 2004/106299 PCT/IB2004/001761 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4 acetoxymethylphenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 2a) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[4 5 phenylthiocarbamoyloxymethylphenyl)amino)carbonyl]-pyrrol-1-yl]-3,5 dihydroxy-heptanoic acid (Compound No. 3a) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4 propionyloxymethylphenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 4a) and its hemicalcium salt, 10 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4 octylcarbamoyloxymethyl phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 5a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylacetoxymethy phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound 15 No. 6a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4 phenylcarbamoyloxymethyl phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 7a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzoyloxymethyl 20 phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 8a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-isonicotinoyloxymethyl phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 9a) and its hemicalcium salt, 25 (3R, 5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4- [4-pyridin-4 ylcarbamoyloxymethyl phenyl) amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 10a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylcarbamoy phenyl)amino) carbonyl]-pyrrol- 1-yl]-3,5-dihydroxy-heptanoic acid (Compound 30 No. 11 a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-cyclohexylcarbamoyl phenyl) amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 12a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophcnyl)-5- isopropyl-3-phenyl-4-[4-methylcarbamoyl) 35 phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 13a) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzylcarbamoyl) phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 14a) and its hemicalcium salt, 40 (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(morpholine-4 carbonyl)-phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 15) and its hemicalcium salt, - 57 - WO 2004/106299 PCT/IB2004/001761 (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(piperidine-1 carbonyl)-phenyl)amino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 16) and its hemicalcium salt, (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzylamino 5 phenyl)amino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 17) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(1 hydroxyethyl)phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 18) and its hemicalcium salt, 10 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(2-hydroxyethyl) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 19) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-hydroxypropyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound 15 No. 20) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl- 3 -phenyl-4-[(4-methoxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 21) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-ethoxymethyl 20 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 22) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl- 3 -phenyl-4-[(4-isopropoxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 23) and its hemicalcium salt, 25 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-propoxymethy phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 24) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 methoxymethoxymethylphenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy 30 heptanoic acid (Compound No. 25) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl- 3 -phenyl-4-[(4-cyclohexyloxymethy phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 26) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-cyclopentyloxymethy 35 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 27) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzyloxymethyl phenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 28) and its hemicalcium salt, 40 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 chlorobenzyloxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy heptanoic acid (Compound No. 29) and its hemicalcium salt, - 58 - WO 2004/106299 PCT/IB2004/001761 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 methoxybenzyloxymethyl phenylamino) carbonyl]-pyrrol- 1 -yl]-3,5-dihydroxy heptanoic acid (Compound No. 30) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 5 phenoxymethylphenylamino) carbonyl]-pyrrol-1-yl]- 3 ,5-dihydroxy-heptanoic acid (Compound No. 31) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-chlorophenoxymethyl phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 32) and its hemicalcium salt, 10 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4 acetylaminophenylamino) carbonyl]-pyrrol-1-yll- 3 ,5-dihydroxy-heptanoic acid (Compound No. 33) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzoylamino phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound 15 No. 34) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzenesulfonylamino phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 36) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-phenyl-ureido) 20 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 37) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-methyl-ureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 38) and its hemicalcium salt, 25 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-benzyll-ureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 39) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-benzyl-thioureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound 30 No. 40) and its hemicalcium salt, (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-phenyl-thioureido) phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 41) and its hemicalcium salt,

(

3 R,5R)-7-[2-(4-fluorophcnyl)-5- isopropyl-3-phenyl-4-[4-(3-methyl-thioureido) 35 phenylamino) carbonyl]-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 42) and its hemicalcium salt. Pharmacological activity The compounds disclosed herein have activity as inhibitors of 3-hydroxy-3 40 methyl-glutanyl coenzyme A (HMG-CoA) reductase, and thus are useful in inhibiting cholesterol biosynthesis and/or in lowering triglycerides. - 59 - WO 2004/106299 PCT/IB2004/001761 The compounds described herein are screened in an in-vitro HMG-CoA reductase enzyme assay as described by Kubo et al., Endocrinology 120:214 (1987) and Hellar et al., Biochem and Biophys. Res. Comm. 50:859 (1973). HMG-CoA reductase is a rate-limiting enzyme in the cholesterol biosynthesis, 5 catalyzing the following reaction. [1 4 C] HMG-CoA + 2NADPH +2H+ .[ 1 4 C] mevanolate + CoA +2NADP+ microsomes, utilizing 2.5 jiM [ 1 4 C] HMG-CoA as a substrate. The reaction is carried out in presence of 100 mM KH 2

PO

4 , 20 mM G-6-P, 2.5 mM NADP, 10 mM EDTA, 5 mM DTT and 1.4 G 6-P dehydrogenase, at 37 C for 15 minutes and quantitating [14 C] mevalonate as an end 10 product. For IC 50 determination, the compounds dissolved in 1% dimethylsulfoxide are preincubated with liver microsomes at 37'C for 30 minutes. The IC 50 for HMG-CoA reductase inhibition in rat liver microsome ranged from 0.1 to 0.96 nM. The compounds disclosed herein ranged from being equipotent to 4 fold more potent than atorvastatin. Some of the compounds disclosed herein were potent than 15 atorvastatin in inhibiting cholesterol synthesis in vivo rat model. Some of the compounds disclosed herein have intrinsic clearance in human liver microsome significantly less than atorvastatin and are not major substrate for CYP3A4 cytochromee p450 3A4). Some of the compounds exhibit potency and selectivity greater than atorvastatin in inhibition of cholesterol synthesis in rat primary hepatocytes over inhibition of cholesterol synthesis in 20 extra hepatic cells/cell lines [e.g. NRK-49F (Fibroblast) and L6 (Myoblast)]. While the present invention has been described in terms of its specific embodiments, certain modifications and equivalents will be apparent to those skilled in the art and are intended to be included within the scope of the present invention. - 60 -

Claims

We Claim: 1. A compound having the structure of Formula I,

Formula I its pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, pure enantiomers, prodrugs, metabolites, polymoφhs,

Ri can be Cι-C₆, d-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, d-Cβ alkyl, cyano, or d- perfluoroalkyl); R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from d-C₆ alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide); R₃ can be optionally substituted d-C₆ alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, d- alkoxy and protected hydroxyl); R₃ can also be -NR₈R₉, wherein R₈ and R₉ are optionally substituted Ci-d alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, Cι-C₃ alkoxy and protected hydroxyl); R can be

wherein R₅ and R$ are independently hydrogen, d-d alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted d-C₆ alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from SO₂R₇, COR₇, or CONHR₇, wherein R₇ is d-C₆ alkyl or aryl), or acetyl, trifluoromethyl, or Cι-C₆ alkoxycarbonyl, or R₅ and R₆ together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or R₄ can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, d-d alkoxy, cyano, Cι-C₃ perfluoroalkyl, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl, Cι-C alkoxy, cyano, or d-d perfluoroalkyl, and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I,

with the provisio that R₂ is phenyl only when (1) R₅ or R$ is C₃-C₆ cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R₅ and R₆ together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or (3) when R₅ or R₆ is aralkyl optionally substituted with halogens, cyano, d-C₆ alkyl, d-d halogenated alkyl or (4) when R₄ is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, Cι-C alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, d-C₆ alkyl, C₃-C₆ cycloalkyl, aryl, or optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens hydroxy, protected hydroxyl, C1-C₃ alkoxy, cyano, or d-C₃ perfluoroalkyl)). 2. A compound having the structure of Formula lb,

its pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides wherein

Ri is Ci-Cβ alkyl, C₃-C cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and C1 -C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; R₃ is optionally substituted Cι-C₆ alkyl or d-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, d-d alkoxy, and protected hydroxyl); R₃ can also be -NR₆R wherein R₆ and R₇ are optionally substituted d- alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxyl, d-C₃ alkoxy, and protected hydroxyl); ₄ is NHR₈ [wherein R₈ is selected from aralkyl, CONHR₉ (wherein R₉ is aralkyl), CSNHR₉ (wherein R₉ is d-C₆ alkyl, aryl or aralkyl)]; -COR₁₀ (wherein R₁₀ is selected from hydroxyl and -NRπRι₂ (wherein Rπ and R₁₂ are independently selected from hydrogen, alkyl, aryl, C₃-C cycloalkyl, aralkyl and Rπ and R₁ together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); and Rs is hydrogen, d-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl [wherein the substituents are selected from halogens, cyano, optionally substituted d-C₆ alkyl (wherein the substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)], optionally substituted amino, acetyl, trifluoromethyl and d-C₆ alkoxycarbonyl. 3. A compound according to claim 1 wherein R! is phenyl substituted with one or more halogens. 4. A compound according to claim 1 wherein R\ is phenyl substituted with one or more fluorine atoms. 5. A compound according to claim 1 wherein R is 4-fluorophenyl. 6. A compound according to claim 1 wherein R₂ is phenyl, R and R₆ are respectively, hydrogen and phenyl substituted with acetyl. 7. A compound according to claim 1 wherein R₆ is 2-acetylphenyl. 8. A compound according to claim 1 wherein R₆ is 3-acetylphenyl. 9. A compound according to claim 1 wherein R₆ is 4-acetylphenyl. 10. A compound according to claim 1 wherein R₂ is phenyl, R₅ and R₆ are respectively, hydrogen and phenyl substituted with one or more alkyl of from one to six carbon atoms. 11. A compound according to claim 1 wherein R₆ is 2,4-dimethylphenyl. 12. A compound according to claim 1 wherein R₂ is phenyl,' R₅ and R₆ are respectively, hydrogen and cycloalkyl of from three to six carbon atoms. 13. A compound according to claim 1 wherein R₆ is cyclohexyl. 14. A compound according to claim 1 wherein R is phenyl, R₅ and R₆ are respectively, hydrogen and benzyl substituted with halogenated alkyl of from one to six carbon atoms. 15. A compound according to claim 1 wherein R₆ is 4-trifluoromethyl benzyl.

16. A compound according to claim 1 wherein R₂ is phenyl, R₅ and R₆ together fonn 5-7 membered ring with or without one or more heteroatoms wherein heteroatoms are selected from the group consisting of nitrogen, oxygen and sulphur. 17. A compound of claim 1 wherein R₅ and R₆ together form piperidine. 18. A compound according to claim 1 wherein R₅ and R₆ together form moφholine. 19. A compound according to claim 1 wherein R is phenyl, R₅ and R₆ are respectively, hydrogen and phenyl substituted with hydroxylated alkyl of from one or six carbon atoms. 20. A compound according to claim 1 wherein R₆ is 4-hydroxymethyl phenyl. 21. A compound according to claim 1 wherein R₂ is phenyl, R₅ and R₆ are respectively, hydrogen and 4-(methylsulfonamido)phenyl. 22. A compound according to claim 1 wherein R₂ is phenyl, R₅ and R₆ are respectively, hydrogen and 4-(acetamido)phenyl. 23. A compoxmd according to claim 1 wherein R₂ is phenyl and R₄ is 1,2,4-oxadiazinyl phenyl. 24. A compound according to claim 1 wherein R is phenyl and R₄ is 1,2,4- triazolylphenyl. 25. A compound according to claim 1 wherein R₂ is 4-cyanophenyl, R₅ and Rg are respectively, hydrogen and phenyl.

26. A compound according to claim 1 wherein R₃ is alkyl of from one to six or cycloalkyl of from three to six carbon atoms. 27. A compound according to claim 1 wherein R is isopropyl. 28. A compound having the structure of Formula lb,

its pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodmgs or N-oxides wherein

Ri, R₂, R₃ and R₅ can be 4-fluorophenyl, phenyl, isopropyl and hydrogen, respectively; R is d-C alkoxycarbonyl, optionally substituted d-C₆ alkyl (wherein the substituent is hydroxy or protected hydroxyl), NHR₈ [wherein R₈ is selected from SO₂R₉, COR₉ or CONHR₉ (wherein R₉ is methyl or phenyl)] . 29. The compound according to claim 2, wherein Ri is phenyl substituted with one or more halogen. 30. The compound according to claim 29, wherein R_\ is phenyl substituted with one or more fluorine. 31. The compound according to claim 30, wherein R₁ is 4-fluorophenyl.

32. The compound according to claim 28, wherein R and R₅ are phenyl and hydrogen, respectively.

33. The compound according to claim 2, wherein R₃ is d-C₆ alkyl.

34. The compound according to claim 33, wherein R is isopropyl.

35. The compound according to claim 2, wherein R4 is -COR₁₀ wherein R₁₀ is hydroxy.

36. The compound according to claim 2, wherein P^ is -COR1₀ wherein R₁₀ is NRπRι₂ (wherein Rπ and R₁₂ together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur).

37. The compound according to claim 2, wherein R). is -COR₁₀ wherein R₁₀ is NRπR₁₂ wherein Rπ and Rι₂ together form moφholinyl.

38. The compound according to claim 2, wherein Ri is -CORio wherein Rio is NRπR₁₂ wherein Rπ and Rι₂ together form piperidinyl.

39. The compound according to claim 2, wherein R4 is -COR₁₀ wherein Rio is NRπR₁₂ wherein Rπ and R₁₂ are respectively, hydrogen and Cj-Cio alkyl.

40. The compound according to claim 39, wherein Ri is -COR₁₀ wherein Rio is NRπR₁₂ wherein Rπ and Rι₂ are respectively, hydrogen and methyl.

41. The compound according to claim 2, wherein _t is -CORio wherein Rio is NRπR₁₂ wherein Rπ and Rι₂ are respectively, hydrogen and aryl.

42. The compound according to claim 41, wherein R₄ is -CORio wherein R_lυ is NRπRι wherein Rπ and Rι₂ are respectively, hydrogen and phenyl.

43. The compound according to claim 2, wherein R is -CORio wherein Rio is NRπR₁₂ wherein Ri ₁ and R₁₂ are respectively, hydrogen and aralkyl.

44. The compound according to claim 43, wherein P^. is -CORio wherein Rio is NRπR₁₂ wherein Rπ and R₁₂ are respectively, hydrogen and benzyl.

45. The compound according to claim 2, wherein R₄ is -CORio wherein R₁₀ is NRπRι₂ wherein Rπ and Rι₂ are respectively, hydrogen and C₃-C-₇ cycloalkyl. 46, The compound according to claim 45, wherein * is -CORio wherein Rio is NRπR₁₂ wherein Rπ and R₁₂ are respectively, hydrogen and cyclohexyl.

47, The compound according to claim 2, wherein R₄ is NHR₈ wherein R₈ is aralkyl.

48, The compound according to claim 47, wherein Pχ is NHR₈ wherein R₈ is benzyl.

49. The compound according to claim 2, wherein R₄ is NHR₈ wherein R₈ is CONHR₉ wherein R₉ is aralkyl.

50. The compound according to claim 49, wherein P is NHR₈ wherein R₈ is CONHR₉ wherein R₉ is benzyl.

51. The compound according to claim 2, wherein P^ is NHR₈ wherein R₈ is CSNHR₉ wherein R₉ is selected from Cι-C₆ alkyl, aryl and aralkyl.

52. The compound according to claim 51, wherein R is NHR₈ wherein R₈ is CSNHR₉ wherein R₉ is selected from methyl, phenyl and benzyl.

53. The compound according to claim 28, wherein R-j is Cι-C₂ alkoxycarbonyl.

54. The compound according to claim 53, wherein R₄ is methoxycarbonyl.

55. The compound according to claim 53, wherein R₄ is ethoxycarbonyl.

56. The compound according to claim 28, wherein P is optionally substituted Cι-C₆ alkyl wherein optional substituent is hydroxy.

57. The compound according to claim 56, wherein R₄ is 1-hydroxyethyl.

58. The compound according to claim 56, wherein P is 2-hydroxyethyl.

59. The compound according to claim 56, wherein * is 3-hydroxypropyl.

60. The compound according to claim 28, wherein R₄ is NHR₈ wherein R₈ is selected from COCH₃, COPh, SO₂CH₃, SO₂Ph , CONHCH₃ and CONHPh.

61. The compound according to claim 28, wherein P4 is optionally substituted Cι-C₆ alkyl wherein optional substituent is protected hydroxyl selected from the group consisting of-OCH₃, -OC₂H₅, -O-n-propyl, -O-i-propyl, -O-cyclopropyl, -O-CH₂OCH₃, -O- cyclopentyl, -O-cyclohexyl, -O-benzyl, -O-chlorobenzyl, -O-methoxybenzyl, -O- phenyl, -O-chlorophenyl, -O-COCH₃, -O-COC₂H₅, -O-CO-benzyl, -O-CO-phenyl, -O- CO-pyridinyl, -O-CONH-phenyl, -O-CONH-octyl, -O-CONH-pyridinyl and -O- CSNH-phenyl. 62. A compound, which is: (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(2-acetylphenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 1), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(3-acetylphenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 2), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-acetylphenylamino) carbonyl] -pyrrol- 1 -yl]-3, 5-dihydroxy-heptanoic acid (Compound No. 3), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(2,4-dimethylphenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 4), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(cyclohexylamino) carbonyl)] -pyrrol- 1 -yl]-3, 5-dihydroxy-heptanoic acid (Compound No. 5), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4- trifluoromethylbenzylamino) carbonyl)]-pyrrol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No. 6), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-(moφholine-4-carbonyl)- pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 7), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-(piperidine-l-carbonyl)- pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 8), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4- hydroxymethylphenylamino)carbonyl]-pyrrol- 1 -yl]-3,5-dihydroxy-heptanoic acid (Compound No. 11), ₍ (3R,5R)-7-[2-(4-fluorophenyl)-5- isoρropyl-3-phenyl-4-[(4- methanesulfonylaminophenylamino) carbonyl] -pyrrol- 1 -yl] -3 , 5-dihydroxy-heptanoic acid (CompoundNo. 12), (3R,5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[(4-acetylaminophenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 13), (3R,5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-(4-cyanophenyl)-4-[(phenylamino) carbonyl)] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 14), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-carboxyphenyl)amino) carbonyl]-pyrrol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No. la), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4- acetoxymethylphenyl)amino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 2a), (3R,5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-[4- phenylthiocarbamoyloxymethylphenyl)amino)carbonyl]-pyrrol-l-yl]-3,5-dihydroxy- heptanoic acid (Compound No. 3a), (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4- propionyloxymethylphenyl)amino) carbonyl] -pyrrol- 1 -yl] -3 , 5-dihydroxy-heptanoic acid (Compound No. 4a), (3R,5R)-7-[2-(4-fluorophenyl)-5- isoρropyl-3-ρhenyl-4-[4-octylcarbamoyloxymethyl phenyl)amino) carbonyl] -pyrrol- 1-yl] -3, 5 -dihydroxy-heptanoic acid (Compound No. 5a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylacetoxymethyl phenyl)amino) carbonyl] -pyιτol- 1-yl] -3, 5 -dihydroxy-heptanoic acid (Compound No. 6a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4- phenylcarbamoyloxymethyl phenyl)amino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy- heptanoic acid (Compound No. 7a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzoyloxymethyl phenyl)amino) carbonyl]-pyπ-ol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No. 8a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-isonicotinoyloxymethyl phenyl)amino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 9a), (3R, 5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4- [4-pyridin-4- ylcarbamoyloxymethyl phenyl) amino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy- heptanoic acid (Compound No. 10a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-phenylcarbamoyl phenyl)amino) carbonyl]-pyrrol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No. 11a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-ρhenyl-4-[4-cyclohexylcarbamoyl- phenyl) amino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 12a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-methylcarbamoyl)- phenyl)amino) carbonyl]-pyrrol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No. 13a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzylcarbamoyl)- phenyl)amino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 14a), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(moφholine-4-carbonyl)- phenyl)amino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 15), (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(piperidine-l-carbonyl)- phenyl)amino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No. 16), 76 (3R, 5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-benzylamino

77 ρhenyl)amino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

78 17),

79 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(l-

80 hydroxyethyl)phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid

81 (CompoundNo. 18),

82 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(2-hydroxyethyl)

83 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

84 19),

85 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3 -hydroxypropyl

86 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

87 20),

88 (3 R, 5R)-7- [2-(4-fluorophenyl)-5 - isopropyl-3 -phenyl-4- [(4-methoxymethyl

89 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

90 21),

91 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-ethoxymethyl

92 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

93 22),

94 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-isopropoxymethyl

95 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5 -dihydroxy-heptanoic acid (Compound No.

96 23),

97 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-propoxymethyl

98 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

99 24),

100 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3 -phenyl-4- [(4-

101 methoxymethoxymethylphenylamino) carbonyl] -pynol- 1-yl] -3, 5-dihydroxy-heptanoic

102 acid (Compound No. 25),

103 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-cyclohexyloxymethyl

104 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5 -dihydroxy-heptanoic acid (Compound No.

105 26),

106 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3 -phenyl-4- [(4-cyclopentyloxymethyl

107 phenylamino) carbonyl] -pyrrol- 1 -yl] -3, 5 -dihydroxy-heptanoic acid (Compound No.

108 27),

109 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzyloxymethyl

110 phenylamino) carbonyl]-ρyrrol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No.

111 28)

112 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-chlorobenzyloxymethyl

113 phenylamino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

114 29), 115 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-methoxybenzyloxymethyl

116 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

117 30),

118 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3 -phenyl-4- [(4-

119 phenoxymethylphenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid

120 (CompoundNo. 31),

121 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-chlorophenoxymethyl

122 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

123 32),

124 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-acetylaminophenylamino)

125 carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No. 33),

126 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzoylamino

127 phenylamino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

128 34),

129 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[(4-benzenesulfonylamino

130 phenylamino) carbonyl] -pyrrol- 1-yl] -3, 5-dihydroxy-heptanoic acid (Compound No.

131 36)

132 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-phenyl-ureido)-

133 phenylamino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

134 37),

135 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-methyl-ureido)-

136 phenylamino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

137 38),

138 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-benzyll-ureido)-

139 phenylamino) carbonyl] -pyrrol- 1 -yl] -3 ,5-dihydroxy-heptanoic acid (Compound No.

140 39),

141 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-benzyl-thioureido)-

142 phenylamino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

143 40),

144 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-phenyl-thioureido)-

145 phenylamino) carbonyl]-pyrrol-l-yl]-3, 5-dihydroxy-heptanoic acid (Compound No.

146 41),

147 (3R,5R)-7-[2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-[4-(3-methyl-thioureido)-

148 phenylamino) carbonyl]-pyrrol-l-yl]-3,5-dihydroxy-heptanoic acid (Compound No.

149 42),

150 and their lactone forms, pharmaceutically acceptable solvates, pharmaceutically

151 acceptable salts, tautomers, racemates, pure enantiomers, diastereoisomers,

152 metabolites, prodrugs, polymoφhs, orN-oxides.

63. A pharmaceutically acceptable salt of a compound of claim 1 ,wherein the salt is selected from lithium, sodium, potassium, calcium, magnesium, zinc, aluminium, amino acid, ammonium, mono-alkyl ammonium, dialkyl ammonium, trialkyl ammonium and N-methyl glucamine. 64. The pharmaceutically acceptable salt of claim 63, wherein the salt is sodium salt. 65. The pharmaceutically acceptable salt of claim 63, wherein the salt is potassium salt. 66. The pharmaceutically acceptable salt of claim 63, wherein the salt is hemicalcium salt. 67. The pharmaceutically acceptable salt of claim 63, wherein the salt is hemimagnesium salt. 68. The pharmaceutically acceptable salt of claim 63, wherein the salt is hemizinc salt. 69. The pharmaceutically acceptable salt of claim 63, wherein the salt is N-methyl glucamine salt. 70. A pharmaceutical composition comprising a therapeutically effective amount of a compound of claim 1 together with a pharmaceutically acceptable carrier, excipient or diluent. 71. A method for treating or preventing a mammal suffering from cholesterol-related disease, diabetes and related disease, cerebrovascular disease or cardiovascular disease, comprising administering to the said mammal, a therapeutically effective amount of a compound of claim 1. 72. A method for treating or preventing a mammal suffering from cholesterol-related disease, diabetes and related disease, cerebrovascular disease or cardiovascular disease, comprising administering to the said mammal, a therapeutically effective amount of a composition according to claim 70. 73. The method according to claim 72, wherein the disease is selected from the group comprising of arteriosclerosis, atherosclerosis, hyperlipidemia, hyperlipoproteinemia, hypercholesterolemia, hypertriglyceridemia, hypertension, stroke, ischemia, endothellium dysfunctions, peripheral vascular disease, peripheral arterial disease, coronary heart disease, myocardial infarction, cerebral infarction, myocardial microvascular disease, dementia, Alzheimer's disease, osteoporosis and/or osteopenia, angina or restenosis.

74. The method according to claim 73 wherein the disease is hyperlipidemia.

75. The method according to claim 73 wherein the disease is hypercholesterolemia.

76. The method according to claim 73 wherein the disease is hyperlipoproteinemia.

77. The method according to claim 73 wherein the disease is hypertriglyceridemia.

78. The method according to claim 73 wherein the disease is hypertension.

79. A process for the preparation of compound of Formula Xlb,

their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides wherein Ri is Cι-C₆ alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cj-C₆ alkyl, cyano and Cι-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, Cι-C alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl); R₄ is acetyl, Cι-C₂ alkoxycarbonyl, optionally substituted Cι-C₆ alkyl (wherein the substituent is hydroxy or protected hydroxyl), NHR₈ [wherein R₈ is selected from alkyl, aralkyl, SO₂R₉, COR₉ or CONHR₉ , CSNHR₉ (wherein R₉ is Ci-Q; alkyl , aryl or aralkyl)],; R4 can also be -CORio (wherein Rι₀ is selected from hydroxyl and - NRπRi₂ (wherein Rπ and Rι₂ are independently selected from hydrogen, alkyl, aryl, d-d cycloalkyl, heterocyclyl, aralkyl and Rπ and Rι together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); and

R₅ is hydrogen, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl [wherein the substituents are selected from halogens, cyano, optionally substituted Ci- C₆ alkyl '(wherein the substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)], optionally substituted amino, acetyl, trifluoromethyl and Cι-C₆ alkoxycarbonyl, comprising: reacting a compound of Formula II with a compound of Formula Illb to give a compound of Formula IVb;

Formula Illb treating the compound of Formula IVb with an aldehyde of Formula V to give a comp

treating the compound of Formula VIb with an aldehyde of Formula VII to give a compound of Formula Vlllb;

treating the compound of Formula Vlllb with a compound of Formula IX to give a compound of Formula Xb; and

hydrolysing the compound of Formula Xb to give a compound of Formula Xlb. A process for the preparation of compound of Formula XVa,

its lactone forms, its pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides wherein Ri is Cι-C₆ alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano and C₁-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Ci-Cg alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide); and R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituents are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl); or R₃ is -NR6R7 wherein R₆ and R₇ are optionally substituted d-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, d-C₃ alkoxy, and protected hydroxyl); comprising: hydrolyzing a compound of Formula XHIa

Formula Xa wherein R₅=H and R^ -COOCH₃ to give a compound of Formula XlVa, which on further hydrolysis gives a compound of Formula XVa. A process for the preparation of compound of Formula XIa,

their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides wherein

Ri is Ci- alkyl, d-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and C₁-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; R₃ is optionally substituted Ci- alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C1-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Ci-Q alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl) ; R-j is acetyl, Cι-C₂ alkoxycarbonyl, optionally substituted Cι-C₆ alkyl (wherein the substituent is hydroxy or protected hydroxyl), NHR₈ [wherein R₈ is selected from alkyl, aralkyl, SO₂R₉, COR₉ or CONHR₉ , CSNHR₉ (wherein R₉ is Ci-Cβ alkyl , aryl or aralkyl)]; Rj can also be -CORio (wherein Rio is selected from hydroxyl and - NRπR₁₂ (wherein Rπ and Rι₂ are independently selected from hydrogen, alkyl, aryl, d-d cycloalkyl, heterocyclyl, aralkyl and Ri 1 and Rι₂ together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); and R₅ is hydrogen, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl [wherein the substituents are selected from halogens, cyano, optionally substituted Ci- C₆ alkyl (wherein the substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)], optionally substituted amino, acetyl, xrifluoromethyl and d-C₆ alkoxycarbonyl, comprising: reacting a compound of Formula XVIII with a compound of Formula V to give a compound of Formula XDC;

Formula XDC

reacting the compound of Formula XDC with a compound of Formula VII to give a compound of Formula XX;

F Formula XX

treating the compound of Formula XX with a compound of Formula DC to yield a compound of Formula XXI;

Formula XXI debenzylating the compound of Formula XXI to give a compound of Formula XXII;

converting the compound of Formula XXII to the corresponding acid chloride; reacting the acid chloride form of the compound of Formula XXII with an amine of Formula Ilia to give a compound of Formula Xa; and

hydrolyzing the compound of Formula Xa to give a compound of Formula XIa. A compound having the structure of Formula XDC,

Formula XIX wherein

R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and

R₃ is optionally substituted Ci-Cβ alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, Cι-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, d-C₃ alkoxy, and protected hydroxyl). 83. A compound having the structure of Formula XX,

Formula XX wherein

Ri is Ci-Gβ alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and Cι-C₃ perfluoroalkyl);

R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and

R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted d-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, d-C₃ alkoxy, and protected hydroxyl).

84. A compound having the structure of Fprmula XXI,

wherein

Ri is Cι-C₆ alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and C₁-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted -d alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl) .

A compound having the structure of Formula XXII,

wherein

Ri is Ci-d alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, d-d alkyl, cyano and C₁-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and R₃ is optionally substituted -d alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, d-d alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted d-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl).

86. A process for the preparation of a compound of Formula XIX,

Formula XIX wherein

R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and

R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, Ci- alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl), comprising: reacting a compound of Formula XVIII with a compound of Formula V;

to give a compound of Formula XIX (wherein R₂ and R₃ are as defined).

87. A process for the preparation of a compound of Formula XX,

Formula XX wherein Ri is Ci-d alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, d-d alkyl, cyano and d-C₃ perfluoroalkyl);

R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and

R₃ is optionally substituted Ci-d alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, d-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Ci-d alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxyl, Cj-d alkoxy, and protected hydroxyl), comprising: reacting a compound of Formula XIX with a compound of Formula VII

F

Formula XIX to give a compound of Formula XX. A process for the preparation of a compound of Formula XXI,

wherein

Ri is Cι-C₆ alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and C₁-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and

R₃ is optionally substituted d- alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, d-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Ci- alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxyl, Cι-C₃ alkoxy, and protected hydroxyl), comprising: treating a compound of Formula XX with a compound of Formula IX

Formula XX

to yield a compound of Fomiula XXI.

A process for the preparation of a compound of Formula XXII,

wherein

Ri is Cι-C₆ alkyl, d-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, d-C₆ alkyl, cyano and Cι-C₃ perfluoroalkyl);

R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; and

R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Cι-C₆ alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxyl, C1-C₃ alkoxy, and protected hydroxyl), comprising: debenzylating the compound of Formula XXI

Formula XXI

to give a compound of Formula XXII. A process for the preparation of a compound of Formula XI,

Formula XI

OH OH OH

Formula I wherein R₄ = AA γ =

V its lactone forms, pharmaceutically acceptable salts, pharmaceutically acceptable solvates, prod gs, metabolites, polymoφhs, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides wherein

Ri can be Cι-C₆, d-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano, or C₁-C₃ perfluoroalkyl); t R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Cι-C₆ alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide);

R₃ can be optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C₁-C₃ alkoxy and protected hydroxyl);

R₃ can also be -NR₈R₉, wherein R₈ and R₉ are optionally substituted Cι-C₆ alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxy, C₁-C₃ alkoxy and protected hydroxyl);

wherein R₅ and R_δ are independently hydrogen, Ci -C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted Cι-C₆ alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from SO₂R₇, COR₇, or CONHR₇, wherein R₇ is Cι-C₆ alkyl or aryl), or acetyl, trifluoromethyl, or Cι-C₆ alkoxycarbonyl, or R₅ and R₆ together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or R₄ can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, d-d alkoxy, cyano, C₁-C₃ perfluoroalkyl, Ci- alkyl or d-C₆ cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl, C1-C₃ alkoxy, cyano, or C₁-C₃ perfluoroalkyl, and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I,

with the provisio that R₂ is phenyl only when (1) R₅ or is d-C₆ cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R₅ and R₆ together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or (3) when R₅ or R₆ is aralkyl optionally substituted with halogens, cyano, Cι-C₆ alkyl, Cι-C₆ halogenated alkyl or (4) when R is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, C1-C3 alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, d-C₆ alkyl, C₃-C₆ cycloalkyl, aryl, or optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, or C₁-C₃ perfluoroalkyl)), compnsing: reacting a compound of Formula II with a compound of Formula III to give a compound of Formula IV;

treating the compound of Formula IV with an aldehyde of Formula V to give a compound of Formula VI;

Formula VI

treating the compound of Formula VI with an aldehyde of Formula VII to give a compound of Formula VIII;

RjCHO Formula VII

Formula VIII treating the compound of Formula VIII with a compound of Formula DC to give a compound of Formula X; and

Formula X hydrolysing the compound of Formula X to give a compound of Formula XL A process for the preparation of compound of Formula XVI,

OH OH OH

Y = - — ^ ^ o its lactone forms, pharmaceutically acceptable salt, pharmaceutically acceptable solvates, prodmgs, metabolites, polymoφhs, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides wherein

Ri can be Cι-C₆, C₃-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano, or C₁-C₃ perfluoroalkyl);

R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Cι-C₆ alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide);

R₃ can be optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C₁-C₃ alkoxy and protected hydroxyl);

R₃ can also be -NR₈R , wherein R₈ and R₉ are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, Cι-C₃ alkoxy and protected hydroxyl); comprising: hydrolysing a compound of Formula XIII to give a compound of Formula XIV;

reducing the compound of Formula XIV to give a compound of Formula XV; and

hydrolysing the compound of Formula XV to give a compound of Formula XVI.

A process for the preparation of compound of Formula XI,

its lactone forms, pharmaceutically acceptable salt, pharmaceutically acceptable solvates, prodmgs, metabolites, polymoφhs, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides wherein Ri can be Cι-C₆, C₃-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano, or C₁-C₃ perfluoroalkyl); R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Cι-C₆ alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide); R3 can be optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C₁-C₃ alkoxy and protected hydroxyl); R3 can also be -NR₈R , wherein R₈ and R are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, Cι-C₃ alkoxy and protected hydroxyl); R₄ can b

wherein R₅ and Rg are independently hydrogen, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted d-C₆ alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from SO₂R₇, COR₇, or CONHR₇, wherein R₇ is C1-G₅ alkyl or aryl), or acetyl, trifluoromethyl, or Cι-C₆ alkoxycarbonyl, or R₅ and R₆ together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or R₄ can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, C1-C₃ alkoxy, cyano, C₁-C₃ perfluoroalkyl, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl, C1-C3 alkoxy, cyano, or C1-C3 perfluoroalkyl, and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I,

with the provisio that R₂ is phenyl only when (1) R5 or 5 is C₃-C₆ cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R₅ and R₆ together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or (3) when R₅ or R₆ is aralkyl optionally substituted with halogens, cyano, d-d alkyl, Cι-C₆ halogenated alkyl or (4) when R4 is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, Cι-C₆ alkyl, C₃-C₆ cycloalkyl, aryl, or optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, or C₁-C₃ perfluoroalkyl)), compnsing: reacting a compound of Formula XVIII with a compound of Formula V to give a compound of Formula XIX;

V Formula XIX

reacting the compound of Formula XIX with a compound of Formula VII to give a compound of Formula XX;

RiCHO Formula VII

treating the compound of Formula XX with a compound of Formula DC to yield a compound of Formula XXI;

Formula XXI

debenzylating the compound of Formula XXI to give a compound of Formula XXII;

80 converting the compound of Formula XXII to the corresponding acid chloride; 81 reacting the acid chloride form of the compound of Formula XXII with an amine of 82 Formula III to give a compound of Formula X; and

87 hydrolyzing the compound of Formula X to give a compound of Formula XL 1 93. A process for the preparation of compound of Formula XI,

Formula XI

Formula I wherein, R₄ = A

2 its lactone forms, pharmaceutically acceptable salt, pharmaceutically acceptable 3 solvates, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides 4 wherein

5 Ri can be Cι-C₆, C₃-C₆, or optionally substituted phenyl (wherein up to three 6 substituents are independently selected from halogens, Cι-C₆ alkyl, cyano, or Cι-C₃

7 perfluoroalkyl);

8 R₂ can be optionally substituted phenyl (wherein up to three substituents are

9 independently selected from cyano, acetyl, or optionally substituted amino, wherein up

10 to two amino substituents are independently selected from Cι-C₆ alkyl, C₃-C₆

11 cycloalkyl, acetyl, or sulfonamide); R₃ can be optionally substituted d- alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C1-C3 alkoxy and protected hydroxyl); R₃ can also be -NR₈R₉, wherein R₈ and R are optionally substituted d-C₆ alkyl (wherein the optional substixuent(s) is/are selected from halogens, hydroxy, d-C₃ alkoxy and protected hydroxyl) ;

wherein Rs and R₆ are independently hydrogen, Ci-d alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted d-d alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from SO₂R₇, COR₇, or CONHR₇, wherein R₇ is Cι-C₆ alkyl or aryl), or acetyl, trifluoromethyl, or Ci-d alkoxycarbonyl, or R₅ and R₆ together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or R4 can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, d-d alkoxy, cyano, d-C₃ perfluoroalkyl, d-C₆ alkyl or C₃-C₆ cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl, d-C₃ alkoxy, cyano, or Cι-C₃ perfluoroalkyl, and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I,

with the provisio that R₂ is phenyl only when (1) R₅ or R is C₃-C₆ cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R₅ and R₆ together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or (3) when R₅ or R₆ is aralkyl optionally substituted with halogens, cyano, d-C₆ alkyl, Ci-d halogenated alkyl or (4) when Ri is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, C1-C₃ alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, Cι-C₆ alkyl, C₃-C₆ cycloalkyl, aryl, or optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, or C₁-C₃ perfluoroalkyl)), comprising: reacting a compound of Formula XVIII with a compound of Formula V to give a compound of Formula XIX;

Formula XIX reacting the compound of Formula XDC with a compound of Formula VII to give a compound of Formula XX;

RiCHO Formula VD

treating the compound of Formula XX with a compound of Formula DC to yield a compound of Formula XXI;

Formula XXI

debenzylating the compound of Formula XXI to give a compound of Formula XXII;

reacting the compound of Formula XXII with an amine of Formula III and a coupling agent to give a compound of Formula X,

RsRgNH Formula III

hydrolyzing the compound of Formula X to give a compound of Formula XL A process for the preparation of compound of Formula Xllb,

their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodmgs or N-oxides wherein

Ri is Ci- alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and C₁-C₃ perfluoroalkyl);

R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino;

R3 is optionally substituted Ci-d alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl); R can also be -NR₆R₇ wherein R₆ and R₇ are optionally substituted Ci-d alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl);

R₄ is acetyl, C1-C₂ alkoxycarbonyl, optionally substituted Cj-C₆ alkyl (wherein the substituent is hydroxy or protected hydroxyl), NHR₈ [wherein R₈ is selected from alkyl, aralkyl, SO₂R₉, COR₉ or CONHR₉ , CSNHR₉ (wherein R₉ is Cι-C₆ alkyl , aryl or aralkyl)],; R can also be -CORio (wherein Rι₀ is selected from hydroxyl and - NR_ΠR_I2 (wherein Rπ and R_J2 are independently selected from hydrogen, alkyl, aryl, d-C₇ cycloalkyl, heterocyclyl, aralkyl and Rπ and Rι₂ together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); and Rs is hydrogen, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl [wherein the substituents are selected from halogens, cyano, optionally substituted Ci- C₆ alkyl (wherein the substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)], optionally substituted amino, acetyl, trifluoromethyl and Ci-d alkoxycarbonyl, comprising: freating the compound of Formula Xlb with sodium hydroxide followed by calcium acetate

to give compound of Formula Xllb

A process for the preparation of compound of Formula XVIa,

its lactone forms, its pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodrugs or N-oxides wherein

Ri is Ci-d alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano and C₁-C₃ perfluoroalkyl);

R₂ is optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Cι-C₆ alkyl, d-d cycloalkyl, acetyl, or sulfonamide); and

R₃ is optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein the substituents are selected from halogens, hydroxyl, C1-C₃ alkoxy, and protected hydroxyl); or

R₃ is -NR₆R₇ wherein R₆ and R₇ are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, d-d alkoxy, and protected hydroxyl); comprising: treating the compound of Formula XVa with sodium hydroxide

to give a compound of Formula XVIa. A process for the preparation of compound of Formula Xlla,

their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, tautomers, racemates, polymoφhs, pure enantiomers, diastereoisomers, metabolites, prodmgs or N-oxides wherein Ri is Cι-C₆ alkyl, C₃-C₆ cycloalkyl, or optionally substituted phenyl (wherein the substituent(s) is/are selected from halogens, Cι-C₆ alkyl, cyano and Cι-C₃ perfluoroalkyl); R₂ is optionally substituted phenyl (wherein the substituent(s) is/are selected from cyano, acetyl and optionally substituted amino; R₃ is optionally substituted d-d alkyl or C₃-C₆ cycloalkyl (wherein the substituent(s) is/are selected from halogens, hydroxyl, Cι-C₃ alkoxy, and protected hydroxyl); R₃ can also be -NR₆R wherein R₆ and R₇ are optionally substituted Ci-d alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxyl, C₁-C₃ alkoxy, and protected hydroxyl) ; R4 is acetyl, C1-C2 alkoxycarbonyl, optionally substituted d-C₆ alkyl (wherein the substituent is hydroxy or protected hydroxyl), NHR₈ [wherein R₈ is selected from alkyl, aralkyl, SO₂R₉, COR₉ or CONHR₉ , CSNHR₉ (wherein R₉ is Cι-C₆ alkyl , aryl or aralkyl)]; 1^ can also be -CORio (wherein R₁₀ is selected from hydroxyl and - NR_ΠR_I2 (wherem Rπ and Rι₂ are independently selected from hydrogen, alkyl, aryl, d-C₇ cycloalkyl, heterocyclyl, aralkyl and Rπ and Rι₂ together form 5-7 membered ring with one or more optional heteroatom(s) wherein the heteroatom(s) is/are independently selected from nitrogen, oxygen and sulphur); and Rs is hydrogen, d-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl [wherein the substituents are selected from halogens, cyano, optionally substituted Ci- C₆ alkyl (wherein the substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)], optionally substituted amino, acetyl, trifluoromethyl and Cι-C₆ alkoxycarbonyl, comprising: freating the compound of Formula XIa with sodium hydroxide followed by calcium acetate

to give a compound of Formula Xlla.

A process for the preparation of a compound of Formula XII,

Formula I wherein

its lactone forms, pharmaceutically acceptable salts, pharmaceutically acceptable solvates, prodrugs, metabolites, polymoφhs, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides wherem

Ri can be Cι-C₆, C₃-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano, or Cι-C₃ perfluoroalkyl);

R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Cι-C₆ alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide); R₃ can be optionally substituted Ci-d alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C1-C3 alkoxy and protected hydroxyl); R₃ can also be -NR₈R₉, wherein R₈ and R are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, C₁-C₃ alkoxy and protected hydroxyl);

wherein R_s and Re are independently hydrogen, Ci -C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted Ci-d alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from SO₂R₇, COR₇, or CONHR₇, wherein R₇ is Cι-C₆ alkyl or aryl), or acetyl, trifluoromethyl, or Cι-C₆ alkoxycarbonyl, or R₅ and R₆ together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or I _t can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, Cι-C₃ perfluoroalkyl, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, or Cι-C₃ perfluoroalkyl, and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I,

with the provisio that R₂ is phenyl only when (1) R₅ or Re is C₃-C₆ cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R₅ and R₆ together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or (3) when R₅ or R₆ is aralkyl optionally substituted with halogens, cyano, d-C₆ alkyl, Cι-C₆ halogenated alkyl or (4) when R4 is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, Ci-d alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, Ci-d alkyl, C₃-C₆ cycloalkyl, aryl, or optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, or C₁-C₃ perfluoroalkyl)), comprising: treating the compound of Formula XI with sodium hydroxide followed by calcium acetate

Formula I wherein to give a compound of Formula XII.

A process for the preparation of compound of Formula XVI,

OH OH OH

Y = its lactone forms, pharmaceutically acceptable salt, pharmaceutically acceptable solvates, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides wherein

Ri can be Cι-C₆, C₃-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, d-C₆ alkyl, cyano, or C₁-C₃ perfluoroalkyl);

R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Cι-C₆ alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide);

R3 can be optionally substituted Cι-C₆ alkyl or C3-G5 cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C₁-C₃ alkoxy and protected hydroxyl);

R3 can also be -NR₈R₉, wherein R₈ and R are optionally substituted Cι-C₆ alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, C₁-C₃ alkoxy and protected hydroxyl), compnsmg: treating the compound of Formula XVI with sodium hydroxide followed by calcium acetate

OH OH OH

Y = to give a compound of Formula XVII.

A process for the preparation of compound of Formula XII,

Formula XII U Formula I wherein, Ε4 = _;A

its lactone forms, pharmaceutically acceptable salt, pharmaceutically acceptable solvates, prodrugs, metabolites, polymoφhs, tautomers, racemates, pure enantiomers, diastereoisomers or N-oxides wherein

Ri can be Cι-C₆, d-C₆, or optionally substituted phenyl (wherein up to three substituents are independently selected from halogens, Cι-C₆ alkyl, cyano, or C₁-C₃ perfluoroalkyl);

R₂ can be optionally substituted phenyl (wherein up to three substituents are independently selected from cyano, acetyl, or optionally substituted amino, wherein up to two amino substituents are independently selected from Ci- alkyl, C₃-C₆ cycloalkyl, acetyl, or sulfonamide); R₃ can be optionally substituted Cι-C₆ alkyl or C₃-C₆ cycloalkyl (wherein substituents are independently selected from halogens, hydroxyl, C₁-C₃ alkoxy and protected hydroxyl); R₃ can also be -NR₈R₉, wherein R₈ and R₉ are optionally substituted Ci-d alkyl (wherein the optional substituent(s) is/are selected from halogens, hydroxy, C1-C₃ alkoxy and protected hydroxyl);

wherein R₅ and Rg are independently hydrogen, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, optionally substituted aryl or aralkyl, wherein the substituents are selected from halogens, cyano, optionally substituted Ci-d alkyl (wherein up to two substituents are independently selected from hydroxyl, protected hydroxyl, and halogen(s)), optionally substituted amino (wherein up to two substituents are independently selected from SO₂R₇, COR₇, or CONHR₇, wherein R₇ is Q-Ce alkyl or aryl), or acetyl, trifluoromethyl, or Ci- alkoxycarbonyl, or R₅ and R₆ together form a 5-7 membered ring with one or more optional heteroatoms wherein the hetero atom(s) are independently selected from nitrogen, oxygen and sulfur, or R₄ can be an optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) wherein said hereto atom(s) is/are independently selected from oxygen, nitrogen and sulfur, and the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, C1-C3 alkoxy, cyano, C₁-C₃ perfluoroalkyl, Cι-C₆ alkyl or C₃-C₆ cycloalkyl, aryl or optionally substituted aralkyl wherein the substituents are independently selected from halogens, hydroxy, protected hydroxyl, C₁-C₃ alkoxy, cyano, or C₁-C₃ perfluoroalkyl, and the pharmaceutically acceptable salts, tautomers, racemates, pure enantiomers or diastereoisomers, and solvates of the compounds of Formula I, with the provisio that R₂ is phenyl only when (1) R₅ or Re is C₃-C₆ cycloalkyl or phenyl substituted with acetyl, alkyl, cycloalkyl, hydroxyalkyl, alkylsulfonamido, acetamido or (2) when R₅ and R₆ together form a 5-7 membered ring with or without one or more heteroatoms wherein the hetero atom(s) are selected from nitrogen, oxygen and sulfur or (3) when R₅ or R₆ is aralkyl optionally substituted with halogens, cyano, Cι-C₆ alkyl, Cι-C₆ halogenated alkyl or (4) when R₄ is optionally substituted mono-, bi- or tricyclic heterocycle having one or more hetero atom(s) (wherein the optional substituents are independently selected from halogens, hydroxy, protected hydroxyl, Cι-C₃ alkoxy, cyano, perfluoroalkyl of one to three carbon atoms, d- alkyl, C₃-C₆ cycloalkyl, aryl, or optionally substituted aralkyl (wherein the aralkyl substituents are independently selected from halogens, hydroxy, protected hydroxyl, d-d alkoxy, cyano, or C1-C₃ perfluoroalkyl)), comprising: treating the compound of Formula XL with sodium hydroxide followed by calcium acetate

Formula XI Formula I wherein, R4 ^: -A

to give a compound of Formula XII.